https://embryology.med.unsw.edu.au/embryology/index.php?title=Paper_-_Development_of_the_thoracic_vertebrae_in_man&feed=atom&action=historyPaper - Development of the thoracic vertebrae in man - Revision history2024-03-29T08:36:47ZRevision history for this page on the wikiMediaWiki 1.39.6https://embryology.med.unsw.edu.au/embryology/index.php?title=Paper_-_Development_of_the_thoracic_vertebrae_in_man&diff=420535&oldid=prevZ8600021: Redirected page to Paper - Development of the thoracic vertebrae in man (1905)2020-10-21T11:13:53Z<p>Redirected page to <a href="/embryology/index.php?title=Paper_-_Development_of_the_thoracic_vertebrae_in_man_(1905)" title="Paper - Development of the thoracic vertebrae in man (1905)">Paper - Development of the thoracic vertebrae in man (1905)</a></p>
<a href="https://embryology.med.unsw.edu.au/embryology/index.php?title=Paper_-_Development_of_the_thoracic_vertebrae_in_man&diff=420535&oldid=361881">Show changes</a>Z8600021https://embryology.med.unsw.edu.au/embryology/index.php?title=Paper_-_Development_of_the_thoracic_vertebrae_in_man&diff=361881&oldid=prevZ8600021 at 12:09, 28 October 20182018-10-28T12:09:03Z<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 23:09, 28 October 2018</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Deposit of calcium salts and actual ossification begins in the distal thoracic and proximal lumbar vertebrae of embryos about 5 to <del style="font-weight: bold; text-decoration: none;">'</del>7 cm. long and three months of age. Fig. 42 shows a center of <del style="font-weight: bold; text-decoration: none;">ossification </del>in an embryo of <del style="font-weight: bold; text-decoration: none;">'</del>70 mm.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Deposit of calcium salts and actual ossification begins in the distal thoracic and proximal lumbar vertebrae of embryos about 5 to 7 cm. long and three months of age. Fig. 42 shows a center of <ins style="font-weight: bold; text-decoration: none;">ossification </ins>in an embryo of 70 mm.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>During the development of the vertebral bodies changes have been active in the neural cartilages. At the period represented in Fig. 7, Plate II, the neural cartilage is «a small, flat body situated in the dorsal process of the scleromere; from this as a center, pedicular, transverse, anterior (superior) and posterior (inferior) articular, and laminar processes are rapidly developed. This structural differentiation is best followed in the figures representing the models (Figs. 25-36). The pediculazr processes are at first slender rods (Fig. 26), each of which grows out towards and finally fuses with its corresponding vertebral body. Froriep has shown (83) that in the chick this process forms a more essential element of the body than in mammals. In the atlas it forms a lateral half of the <del style="font-weight: bold; text-decoration: none;">170 Development </del>of <del style="font-weight: bold; text-decoration: none;">Thoracic Vertebrw </del>in <del style="font-weight: bold; text-decoration: none;">Man</del></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>During the development of the vertebral bodies changes have been active in the neural cartilages. At the period represented in Fig. 7, Plate II, the neural cartilage is «a small, flat body situated in the dorsal process of the scleromere; from this as a center, pedicular, transverse, anterior (superior) and posterior (inferior) articular, and laminar processes are rapidly developed. This structural differentiation is best followed in the figures representing the models (Figs. 25-36). The pediculazr processes are at first slender rods (Fig. 26), each of which grows out towards and finally fuses with its corresponding vertebral body. Froriep has shown (83) that in the chick this process forms a more essential element of the body than in mammals. In the atlas it forms a lateral half of the <ins style="font-weight: bold; text-decoration: none;">ventral arch, but in the thoracic region </ins>of <ins style="font-weight: bold; text-decoration: none;">mammals it fuses with the antero-lateral portion of the corresponding vertebral body. After its junction with this the pedicle increases </ins>in <ins style="font-weight: bold; text-decoration: none;">size but otherwise shows no marked alteration of form.</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">ventral arch, but in the thoracic region of mammals it fuses with the antero-lateral portion of the corresponding vertebral body. After its junction with this the pedicle increases in size but otherwise shows no marked alteration of form.</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The transverse process is at first a short projection which lies at some distance from its corresponding rib (Fig. 26). The cartilagenous rib rapidly increases in size and at the same time the transverse process grows outward and forward to meet it (Figs. 29, 32 and 34). At <ins style="font-weight: bold; text-decoration: none;">first </ins>the developing cartilage of the rib and that of the transverse process are embedded in a continuous blastema, but before <ins style="font-weight: bold; text-decoration: none;">chondrification </ins>has proceeded far, branches from successive intervertebral arteries become anastomosed in the area between the neck of the rib and the transverse process and separation is efiected (Figs. 36, 38 B and 39).</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The transverse process is at first a short projection which lies at some distance from its corresponding rib (Fig. 26). The cartilagenous rib rapidly increases in size and at the same time the transverse process grows outward and forward to meet it (Figs. 29, 32 and 34). At <del style="font-weight: bold; text-decoration: none;">first </del>the developing cartilage of the rib and that of the transverse process are embedded in a continuous blastema, but before <del style="font-weight: bold; text-decoration: none;">chondrification </del>has proceeded far, branches from successive intervertebral arteries become anastomosed in the area between the neck of the rib and the transverse process and separation is efiected (Figs. 36, 38 B and 39).</div></td><td colspan="2" class="diff-side-added"></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The articul-ar processes develop slowly from the cartilage. Extension takes place anteriorly, A. A. Pr., and posteriorly, P. A. Pr., in the interdorsal membrane. In an embryo of 14 mm<del style="font-weight: bold; text-decoration: none;">. </del>(Figs. 25, 26 and 27) these articular plates are separated by a distinct interval. In one of 17 mm. they have approached each other very closely (Fig. 37) ; and in one of 20 mm. not only do the articular processes show distinctly more form (Figs. 28, 29 and 30), but in addition the superior articular process slightly overlaps the inferior (Fig. 38). This overlap of the superior articular processes is distinctly more advanced in an embryo of 28 mm. (Fig. 39), and still more so in one of 33 mm. (Figs. 31-33). In an embryo of 50 mm<del style="font-weight: bold; text-decoration: none;">. </del>(Figs. 34, 35 and 40) conditions essentially like the adult have been reached.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The articul-ar processes develop slowly from the cartilage. Extension takes place anteriorly, A. A. Pr., and posteriorly, P. A. Pr., in the interdorsal membrane. In an embryo of 14 mm (Figs. 25, 26 and 27) these articular plates are separated by a distinct interval. In one of 17 mm. they have approached each other very closely (Fig. 37) ; and in one of 20 mm. not only do the articular processes show distinctly more form (Figs. 28, 29 and 30), but in addition the superior articular process slightly overlaps the inferior (Fig. 38). This overlap of the superior articular processes is distinctly more advanced in an embryo of 28 mm. (Fig. 39), and still more so in one of 33 mm. (Figs. 31-33). In an embryo of 50 mm (Figs. 34, 35 and 40) conditions essentially like the adult have been reached.</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">The laminar processes scarcely exist in Embryo CXLIV (Fig. 26). In Embryo XXII (Fig. 29) they have begun to project posteriorly to the region of the articular processes (Fig. 29). The dense embryonic connective tissue covering the laminar processes at this stage gives attachment to a membrane covering, the dorsal musculature, F. D. M ., and to a membrane surrounding the spinal cord, M. R. D. This accounts for the two projections seen dorsally on the side of the model representing the membranous tissue. In Embryo CXLV, length 33 mm., the laminar processes extend well toward the dorsal line (Figs. 32 and 33) ; in Embryo LXXXIV, length 50 mm. (Figs. 34, 35 and 40), they completely encircle the spinal canal and from the region of fusion of each pair a spinous process extends distally, though not so far as in the adult.</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">The laminar processes scarcely exist in Embryo CXLIV (Fig. 26). In Embryo XXII {{CE22}} (Fig. 29) they have begun to project posteriorly to the region of the articular processes (Fig. 29). The dense embryonic connective tissue covering the laminar processes at this stage gives attachment to a membrane covering, the dorsal musculature, F. D. M ., and to a membrane surrounding the spinal cord, M. R. D. This accounts for the two projections seen dorsally on the side of the model representing the membranous tissue. In Embryo CXLV, length 33 mm, the laminar processes extend well toward the dorsal line (Figs. 32 and 33) ; in Embryo LXXXIV, length 50 mm. (Figs. 34, 35 and 40), they completely encircle the spinal canal and from the region of fusion of each pair a spinous process extends distally, though not so far as in the adult.</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">Alterations in the cartilage of the neural processes preliminary to Charles R. Bardeen 171</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">ossification </del>begin at about the time they take place in the vertebral bodies. They are first seen in an area which corresponds to that in which the neural cartilage begins. The earliest calcification appears in Embryo CLXXXIV, length 50 mm., in the arches of the first cervical to the sixth thoracic vertebrae.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Alterations in the cartilage of the neural processes preliminary to ossification </ins>begin at about the time they take place in the vertebral bodies. They are first seen in an area which corresponds to that in which the neural cartilage begins. The earliest calcification appears in Embryo CLXXXIV, length 50 mm., in the arches of the first cervical to the sixth thoracic vertebrae.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The development of the ribs I shall not attempt in this place to describe in detail. Figs. 25-34 and 37-42 show sufliciently well the relations of the proximal ends of the ribs to the vertebrae. They are developed opposite the intervertebral disks. The blastemal tissue which surrounds the developing heads of the ribs becomes converted into eosto-vertebral ligaments. Diiferentiation in the cartilage preliminary to ossification takes place in the shafts of the ribs even earlier than in the vertebral bodies and in the neural processes. <del style="font-weight: bold; text-decoration: none;">Ossification </del>is well under way in the shafts of the ribs of Embryo LXXIX, length 33 mm<del style="font-weight: bold; text-decoration: none;">. </del>; XCVI, length 44 mm<del style="font-weight: bold; text-decoration: none;">.</del>; XCV, length, 46 mm<del style="font-weight: bold; text-decoration: none;">. </del>; and LXXXIV, length 50 mm.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The development of the ribs I shall not attempt in this place to describe in detail. Figs. 25-34 and 37-42 show sufliciently well the relations of the proximal ends of the ribs to the vertebrae. They are developed opposite the intervertebral disks. The blastemal tissue which surrounds the developing heads of the ribs becomes converted into eosto-vertebral ligaments. Diiferentiation in the cartilage preliminary to ossification takes place in the shafts of the ribs even earlier than in the vertebral bodies and in the neural processes. <ins style="font-weight: bold; text-decoration: none;">Ossification </ins>is well under way in the shafts of the ribs of Embryo LXXIX, length 33 mm; XCVI, length 44 mm; XCV, length, 46 mm; and LXXXIV, length 50 mm.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===Summary===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===Summary===</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Each cartilagenous vertebra is developed from four centers of chondrification. In addition, a separate center appears for each rib. In comparing these centers with the blastemal formative centers, we find that each primative center of blastemal condensation enters into union with tissue derived from the anterior half of the body-segment next posterior and then gives rise to three centers of <del style="font-weight: bold; text-decoration: none;">chondrification</del>, one for the neural arch, one for the rib and one for half a vertebra. When ossification first takes place the centers for the <del style="font-weight: bold; text-decoration: none;">ossification </del>of the neural arches and the ribs correspond to the original <del style="font-weight: bold; text-decoration: none;">chondrification </del>centers in the blastema, but the centers for <del style="font-weight: bold; text-decoration: none;">ossification </del>of the bodies show little. trace of the bilateral condition which marks the cartilagenous fundaments.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Each cartilagenous vertebra is developed from four centers of chondrification. In addition, a separate center appears for each rib. In comparing these centers with the blastemal formative centers, we find that each primative center of blastemal condensation enters into union with tissue derived from the anterior half of the body-segment next posterior and then gives rise to three centers of <ins style="font-weight: bold; text-decoration: none;">chondrification</ins>, one for the neural arch, one for the rib and one for half a vertebra. When ossification first takes place the centers for the <ins style="font-weight: bold; text-decoration: none;">ossification </ins>of the neural arches and the ribs correspond to the original <ins style="font-weight: bold; text-decoration: none;">chondrification </ins>centers in the blastema, but the centers for <ins style="font-weight: bold; text-decoration: none;">ossification </ins>of the bodies show little. trace of the bilateral condition which marks the cartilagenous fundaments.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The processes of chondrogenous form differentiation are shown in the drawings of the models. The period of <del style="font-weight: bold; text-decoration: none;">ossification </del>of the vertebrae has been so often and so well described that no attempt will be made to enter upon a further acount of it in this paper. I have, however, not found two primary <del style="font-weight: bold; text-decoration: none;">ossification </del>centers, such as Renault and Rambaud have described, for each neural arch.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The processes of chondrogenous form differentiation are shown in the drawings of the models. The period of <ins style="font-weight: bold; text-decoration: none;">ossification </ins>of the vertebrae has been so often and so well described that no attempt will be made to enter upon a further acount of it in this paper. I have, however, not found two primary <ins style="font-weight: bold; text-decoration: none;">ossification </ins>centers, such as Renault and Rambaud have described, for each neural arch.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Literature==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Literature==</div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l167">Line 167:</td>
<td colspan="2" class="diff-lineno">Line 163:</td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>V. EBNER. — Urwirbel und Neugliederung der Wirbelsaiile. Wiener Sitzungsberichte, XCVII, 3 Abtheil, 1888.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>V. EBNER. — Urwirbel und Neugliederung der Wirbelsaiile. Wiener Sitzungsberichte, XCVII, 3 Abtheil, 1888.</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Ueber die Beziehungen des Wirbels zu den Urwirbeln. Wiener Sitzungsberichte,, CI, Abth. 3, 1892. </div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Ueber die Beziehungen des Wirbels zu den Urwirbeln. Wiener Sitzungsberichte,, CI, Abth. 3, 1892. </div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l190">Line 190:</td>
<td colspan="2" class="diff-lineno">Line 185:</td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>MACALISTER. <del style="font-weight: bold; text-decoration: none;">—The </del>Development and Varieties of the <del style="font-weight: bold; text-decoration: none;">2d </del>Cervical Vertebra. M.2lNNER.—Zeitschrift I. Wiss. Zoologie, LXVI, 43, 1899.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>MACALISTER. <ins style="font-weight: bold; text-decoration: none;">— The </ins>Development and Varieties of the <ins style="font-weight: bold; text-decoration: none;">2nd </ins>Cervical Vertebra. M.2lNNER.—Zeitschrift I. Wiss. Zoologie, LXVI, 43, 1899.</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>MKNNIcn.—Beitr§.ge zur Entwicklung der Wirbelsaiile von Endypleschryscome. Jenaische Zeitschr., XXXVII, 1-40, 1902.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>MKNNIcn.—Beitr§.ge zur Entwicklung der Wirbelsaiile von Endypleschryscome. Jenaische Zeitschr., XXXVII, 1-40, 1902.</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>MOSER, E. — Ueber das Wachsthum der menschlichen Wirbelsaiile. Dissertation, Strassburg, 1889.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>MOSER, E. — Ueber das Wachsthum der menschlichen Wirbelsaiile. Dissertation, Strassburg, 1889.</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>RAMBAUD et RENAULT — 01‘1ginB et developpement des os. Paris, 1864.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>RAMBAUD et RENAULT — 01‘1ginB et developpement des os. Paris, 1864.</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>RIDEWOOD. — On the Development of the Vertebral Column in Pipa and Xenopus. Anat. Anzeiger, XIII, 1901.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>RIDEWOOD. — On the Development of the Vertebral Column in Pipa and Xenopus. Anat. Anzeiger, XIII, 1901.</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>SCHAUINSLAND. — UebeI‘SiCht fiber die Entwicklung der Wirbelsfiule in der</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>SCHAUINSLAND. — UebeI‘SiCht fiber die Entwicklung der Wirbelsfiule in der</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Reihe der Vertebraten. Verhandl. Deutsch. Zool. Gesellsch., Wiirzburg, 112-113, 1903.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Reihe der Vertebraten. Verhandl. Deutsch. Zool. Gesellsch., Wiirzburg, 112-113, 1903.</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>SCHOMBURG, H. — Entwicklung des Muskeln und Knochen des menschlichen Fusses. Dissertation, Gfittingen, 1900.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>SCHOMBURG, H. — Entwicklung des Muskeln und Knochen des menschlichen Fusses. Dissertation, Gfittingen, 1900.</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>SonUL'rzE. — Ueber embryonale und bleibende Segmentirung. Verhandl. der Anat. Gesellschaft, 10 Vers., Berlin, 87-92, 1896.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>SonUL'rzE. — Ueber embryonale und bleibende Segmentirung. Verhandl. der Anat. Gesellschaft, 10 Vers., Berlin, 87-92, 1896.</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Wmss, A.—Dle Entwicklung der Wirbelsaiile der weissen Ratte, beonders der vordersten I-Ialswirbel. Zeitschr. f. wise. Zoologie, LXVI, 492, 1901.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Wmss, A.—Dle Entwicklung der Wirbelsaiile der weissen Ratte, beonders der vordersten I-Ialswirbel. Zeitschr. f. wise. Zoologie, LXVI, 492, 1901.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">WELCKER.-Ueber Bau und Entwicklung der Wirbelsaiile. Zoolog. Anzeiger, 1878. Charles R. Bardeen 173</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">WELCKER.-Ueber Bau und Entwicklung der Wirbelsaiile. Zoolog. Anzeiger, 1878. Charles R. Bardeen 173</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Explanation of Figures==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Explanation of Figures==</div></td></tr>
</table>Z8600021https://embryology.med.unsw.edu.au/embryology/index.php?title=Paper_-_Development_of_the_thoracic_vertebrae_in_man&diff=361879&oldid=prevZ8600021: /* Plate II */2018-10-28T12:05:13Z<p><span dir="auto"><span class="autocomment">Plate II</span></span></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 23:05, 28 October 2018</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===Plate II===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===Plate II===</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">FIGS</del>. 5, 6 and 7. Cross-sections through midthoracic segments during the blastemal period of vertebral development. 55 diam<del style="font-weight: bold; text-decoration: none;">. (5) Embryo LXXVI, length 4.5 mm. The right side of the section passes through the middle, the left side through the posterior third of the 5th segment. (6) Embryo II, length 7 mm. 5th thoracic segment. The right side of the drawing represents a. section anterior to that shown at the left. (7) Embryo CLXXV, length 13 mm. The left half of the 6th vertebral body, neural process and rib are drawn in detail, the body-wall, spinal cord and spinal ganglion are shown in outline</del>.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Figs</ins>. 5, 6 and 7. Cross-sections through midthoracic segments during the blastemal period of vertebral development. 55 diam. </div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">(5) Embryo LXXVI {{CE76}}, length 4.5 mm. The right side of the section passes through the middle, the left side through the posterior third of the 5th segment. (6) Embryo II {{CE2}}, length 7 mm. 5th thoracic segment. The right side of the drawing represents a. section anterior to that shown at the left. (7) Embryo CLXXV {{CE175}}, length 13 mm. The left half of the 6th vertebral body, neural process and rib are drawn in detail, the body-wall, spinal cord and spinal ganglion are shown in outline.</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===Plate III===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===Plate III===</div></td></tr>
</table>Z8600021https://embryology.med.unsw.edu.au/embryology/index.php?title=Paper_-_Development_of_the_thoracic_vertebrae_in_man&diff=361877&oldid=prevZ8600021: /* Plate VII */2018-10-28T12:03:55Z<p><span dir="auto"><span class="autocomment">Plate VII</span></span></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 23:03, 28 October 2018</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===Plate VII===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===Plate VII===</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Figs. 36-42. Transverse sections through mid-thoracic vertebrae of a series of embryos. 5 diam<del style="font-weight: bold; text-decoration: none;">. (36) Embryo CVI, length 17 mm. (37) Embryo CCXVI, length 17 mm. (38) Embryo XXII, length 20 mm. (39) Embryo XLV, length 20 mm. (40) Embryo LXXXIV, length 50 mm. (41) Embryo XLIV, length 70 mm. (42) Embryo XXIII, length 70 mm</del>.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Figs. 36-42. Transverse sections through mid-thoracic vertebrae of a series of embryos. 5 diam. </div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">(36) Embryo CVI {{CE106}}, length 17 mm (37) Embryo CCXVI {{CE216}}, length 17 mm (38) Embryo XXII {{CE22}}, length 20 mm (39) Embryo XLV {{CE45}}, length 20 mm (40) Embryo LXXXIV {{CE84}}, length 50 mm (41) Embryo XLIV {{CE44}}, length 70 mm (42) Embryo XXIII {{CE23}}, length 70 mm.</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">The models from which the illustrations in this article were drawn have been reproduced by Dr. B. E. Dahlgren at the American Museum of Natural History, New Y orh, N. Y ., and arrangements may be made for securing copies by applying to the Director of the Museum. </del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">The models from which the illustrations in this article were drawn have been reproduced by Dr. B. E. Dahlgren at the American Museum of Natural History, New York, N.Y., and arrangements may be made for securing copies by applying to the Director of the Museum. </ins></div></td></tr>
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</table>Z8600021https://embryology.med.unsw.edu.au/embryology/index.php?title=Paper_-_Development_of_the_thoracic_vertebrae_in_man&diff=361875&oldid=prevZ8600021: /* Plate VI */2018-10-28T12:01:15Z<p><span dir="auto"><span class="autocomment">Plate VI</span></span></p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Figs. 25-35. Dorsal, lateral and ventral views of models made by the Born method to illustrate vertebral form-differentiation in the 6th, 7th and 8th thoracic vertebrae during the chondrogenous period. </ins></div></td></tr>
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<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">Fxos. 25-35. Dorsal, lateral and ventral views of models made by the Born method to illustrate vertebral form-differentiation in the 6th, 7th and 8th thoracic vertebrae during the chondrogenous period. </del>On the left side the cartilagenous, on the right the enveloping fibrous tissue is shown. The latter is also shown on the eighth vertebra in Figures 29 and 35. (25-27) Embryo CXLIV, length 14 mm<del style="font-weight: bold; text-decoration: none;">.</del>, 20 diam. (28-30) Embryo XXII, length 20 mm<del style="font-weight: bold; text-decoration: none;">.</del>, 13 diam. (31-33) Embryo CXLV, length 33 mm<del style="font-weight: bold; text-decoration: none;">.</del>, 10 diam. (34, 35) Embryo LXXXIV, length 50 mm<del style="font-weight: bold; text-decoration: none;">.</del>, 10 diam. (34) Dorsal view, left half; (35) median view.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>On the left side the cartilagenous, on the right the enveloping fibrous tissue is shown. The latter is also shown on the eighth vertebra in Figures 29 and 35. (25-27) Embryo CXLIV <ins style="font-weight: bold; text-decoration: none;">{{CE144}}</ins>, length 14 mm, 20 diam. (28-30) Embryo XXII <ins style="font-weight: bold; text-decoration: none;">{{CE22}}</ins>, length 20 mm, 13 diam. (31-33) Embryo CXLV <ins style="font-weight: bold; text-decoration: none;">{{CE145}}</ins>, length 33 mm, 10 diam. (34, 35) Embryo LXXXIV <ins style="font-weight: bold; text-decoration: none;">{{CE84}}</ins>, length 50 mm, 10 diam. (34) Dorsal view, left half; (35) median view.</div></td></tr>
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</table>Z8600021https://embryology.med.unsw.edu.au/embryology/index.php?title=Paper_-_Development_of_the_thoracic_vertebrae_in_man&diff=361873&oldid=prevZ8600021: /* Plate V */2018-10-28T11:59:45Z<p><span dir="auto"><span class="autocomment">Plate V</span></span></p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===Plate V===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===Plate V===</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">Frcs</del>. 17-24. Sagittal sections in the mid-line through the 6th, 7th and 8th thoracic segments of a series of embryos from 12 to 50 mm. long. (17) Embryo CCXXI, length 12 mm. This section includes several segments anterior and posterior to the three above mentioned, 6th, 7th and 8th. (18) Embryo CXLIV, length 14 mm<del style="font-weight: bold; text-decoration: none;">. </del>(19) Embryo CVIII, length 22 mm<del style="font-weight: bold; text-decoration: none;">. </del>(20) Embryo LXXXVI, length 30 mm<del style="font-weight: bold; text-decoration: none;">. </del>(21) Embryo CXLV, length 33 mm<del style="font-weight: bold; text-decoration: none;">. </del>(22) Embryo LXXIX, length 33 mm<del style="font-weight: bold; text-decoration: none;">. </del>(23) Embryo XCVI, length 44 mm<del style="font-weight: bold; text-decoration: none;">. </del>(24) Embryo CLXXXIV, length 50 mm.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Figs</ins>. 17-24. Sagittal sections in the mid-line through the 6th, 7th and 8th thoracic segments of a series of embryos from 12 to 50 mm. long. </div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>(17) Embryo CCXXI <ins style="font-weight: bold; text-decoration: none;">{{CE221}}</ins>, length 12 mm. This section includes several segments anterior and posterior to the three above mentioned, 6th, 7th and 8th. (18) Embryo CXLIV <ins style="font-weight: bold; text-decoration: none;">{{CE144}}</ins>, length 14 mm (19) Embryo CVIII <ins style="font-weight: bold; text-decoration: none;">{{CE108}}</ins>, length 22 mm (20) Embryo LXXXVI <ins style="font-weight: bold; text-decoration: none;">{{CE86}}</ins>, length 30 mm (21) Embryo CXLV <ins style="font-weight: bold; text-decoration: none;">{{CE145}}</ins>, length 33 mm (22) Embryo LXXIX <ins style="font-weight: bold; text-decoration: none;">{{CE79}}</ins>, length 33 mm (23) Embryo XCVI <ins style="font-weight: bold; text-decoration: none;">{{CE96}}</ins>, length 44 mm (24) Embryo CLXXXIV <ins style="font-weight: bold; text-decoration: none;">{{CE184}}</ins>, length 50 mm.</div></td></tr>
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</table>Z8600021https://embryology.med.unsw.edu.au/embryology/index.php?title=Paper_-_Development_of_the_thoracic_vertebrae_in_man&diff=361871&oldid=prevZ8600021: /* Plate IV */2018-10-28T11:57:45Z<p><span dir="auto"><span class="autocomment">Plate IV</span></span></p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===Plate IV===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===Plate IV===</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">FIGS</del>. 8, 9, 10, 11, 12 and 13. Views of models representing the blastemal stage of vertebral development. (8-10) Embryo II, length 7 mm., 33<del style="font-weight: bold; text-decoration: none;">% </del>diam. (11-13) Embryo CLXIII, length 9 mm., 25 diam. (14-16) Embryo CIX, length 11 mm., 25 diam. 8, 11 and 14 views from in front; 9, 12, 15, views from the side; 10, 13, 16, views from behind <del style="font-weight: bold; text-decoration: none;">174 Development of Thoracic Vertebrae in Man</del></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Figs</ins>. 8, 9, 10, 11, 12 and 13. Views of models representing the blastemal stage of vertebral development. (8-10) Embryo II <ins style="font-weight: bold; text-decoration: none;">{{CE2}}</ins>, length 7 mm., 33 diam. (11-13) Embryo CLXIII <ins style="font-weight: bold; text-decoration: none;">{{CE163}}</ins>, length 9 mm., 25 diam. (14-16) Embryo CIX <ins style="font-weight: bold; text-decoration: none;">{{CE109}}</ins>, length 11 mm., 25 diam. 8, 11 and 14 views from in front; 9, 12, 15, views from the side; 10, 13, 16, views from behind<ins style="font-weight: bold; text-decoration: none;">.</ins></div></td></tr>
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</table>Z8600021https://embryology.med.unsw.edu.au/embryology/index.php?title=Paper_-_Development_of_the_thoracic_vertebrae_in_man&diff=361869&oldid=prevZ8600021: /* Plate I */2018-10-28T11:56:24Z<p><span dir="auto"><span class="autocomment">Plate I</span></span></p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===Plate I===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===Plate I===</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>FIGS. 1, 2, 3 and 4. Frontal sections through the thoracic region of several embryos during the blastemal period of vertebral development. 47.5 diam. (1) Embryo CLXXXVI, length 3.5 mm. (2) Embryo LXXX, length 5 mm<del style="font-weight: bold; text-decoration: none;">. </del>(3) and (4) Embryo CCXLI, length 6 mm. (3) Through the region of the chorda dorsalis, (4) through a. more dorsal plane. Figures 1, 3 and 4 represent sections cut somewhat obliquely so that the right side of the sections is ventral to the left. In Figs. 2 and 4 on the right side the bodies of several embryonic vertebrae are represented in outline. In Figs. 2 and 3 owing to artefacts the myotomes are pulled away from the sclerotomes.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>FIGS. 1, 2, 3 and 4. Frontal sections through the thoracic region of several embryos during the blastemal period of vertebral development. 47.5 diam. (1) Embryo CLXXXVI <ins style="font-weight: bold; text-decoration: none;">{{CE186}}</ins>, length 3.5 mm. (2) Embryo LXXX <ins style="font-weight: bold; text-decoration: none;">{{CE80}}</ins>, length 5 mm (3) and (4) Embryo CCXLI <ins style="font-weight: bold; text-decoration: none;">{{CE241}}</ins>, length 6 mm. (3) Through the region of the chorda dorsalis, (4) through a. more dorsal plane. Figures 1, 3 and 4 represent sections cut somewhat obliquely so that the right side of the sections is ventral to the left. In Figs. 2 and 4 on the right side the bodies of several embryonic vertebrae are represented in outline. In Figs. 2 and 3 owing to artefacts the myotomes are pulled away from the sclerotomes.</div></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===Plate II===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===Plate II===</div></td></tr>
</table>Z8600021https://embryology.med.unsw.edu.au/embryology/index.php?title=Paper_-_Development_of_the_thoracic_vertebrae_in_man&diff=361867&oldid=prevZ8600021: /* The Blastemal Period */2018-10-28T11:55:14Z<p><span dir="auto"><span class="autocomment">The Blastemal Period</span></span></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 22:55, 28 October 2018</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>In man the <del style="font-weight: bold; text-decoration: none;">fissure </del>becomes distinct in the thoracic region at about the end of the third week of development (Fig. 2, Plate 1) .' At this period the median surface of each myotome has become converted into muscle fibres (Fig. 2, M yo.) . At the same time the mesenchyme in the posterolateral region of each sclerotome has become condensed so that it appears, in a stained section, dark when compared with that of the anterior half (Fig. 2). At the lateral margin of the anterior halves of the sclerotomes -the spinal nerves extend out toward the thoracic wall (Fig. 2, Sp. N .). The division between the sclerotomes is still marked by the intersegmental arteries (Fig. 2). About the chords. dorsalis the cells of the axial mesenchyme become densely grouped into a perichordal sheath. The long axes of the cells lie parallel with the chords (Fig. 2, Pch. 8.).</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>In man the <ins style="font-weight: bold; text-decoration: none;">fissure </ins>becomes distinct in the thoracic region at about the end of the third week of development (Fig. 2, Plate 1) .' At this period the median surface of each myotome has become converted into muscle fibres (Fig. 2, M yo.) . At the same time the mesenchyme in the posterolateral region of each sclerotome has become condensed so that it appears, in a stained section, dark when compared with that of the anterior half (Fig. 2). At the lateral margin of the anterior halves of the sclerotomes -the spinal nerves extend out toward the thoracic wall (Fig. 2, Sp. N .). The division between the sclerotomes is still marked by the intersegmental arteries (Fig. 2). About the chords. dorsalis the cells of the axial mesenchyme become densely grouped into a perichordal sheath. The long axes of the cells lie parallel with the chords (Fig. 2, Pch. 8.).</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The condensation of tissue which distinguishes the posterior sclerotome half begins, as mentioned above, in the posterior lateral area of each sclerotome. From here the condensation extends dorsally between the medial surface of the posterior half of the corresponding myotome and spinal ganglion and gives rise to a dorsal, or neural, process (Figs. 5 and 6, Plate 2, N. P12). At the same time it proceeds ventrally along the distal margin of the corresponding myotome and gives rise to a ventral or costal process (Figs. 5 and 6, 0'. Pr.) ; and medially toward the chorda dorsalis, giving rise to a process which joins about the chorda dorsalis with a similar one, from the other side of the segment (Figs. 5 and 6, Disk). These median processes by their fusion form what has been termed by Weiss, or, a “horizontal plate.” “Primitive <del style="font-weight: bold; text-decoration: none;">disk ” </del>seems to me perhaps a better term.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The condensation of tissue which distinguishes the posterior sclerotome half begins, as mentioned above, in the posterior lateral area of each sclerotome. From here the condensation extends dorsally between the medial surface of the posterior half of the corresponding myotome and spinal ganglion and gives rise to a dorsal, or neural, process (Figs. 5 and 6, Plate 2, N. P12). At the same time it proceeds ventrally along the distal margin of the corresponding myotome and gives rise to a ventral or costal process (Figs. 5 and 6, 0'. Pr.) ; and medially toward the chorda dorsalis, giving rise to a process which joins about the chorda dorsalis with a similar one, from the other side of the segment (Figs. 5 and 6, Disk). These median processes by their fusion form what has been termed by Weiss, or, a “horizontal plate.” “Primitive <ins style="font-weight: bold; text-decoration: none;">disk” </ins>seems to me perhaps a better term.</div></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The whole mass of condensed tissue which gives rise to the primitive dorsal, ventral and median processes has received various designations, of which that given by Froriep, 83, “primitive vertebral arc ” seems to be the most Widely accepted. Since, however, it represents much more than -a vertebral semi-arch, I have previously, 99, suggested for it the term “ <del style="font-weight: bold; text-decoration: none;">scleromere</del>.<del style="font-weight: bold; text-decoration: none;">” ‘</del></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The whole mass of condensed tissue which gives rise to the primitive dorsal, ventral and median processes has received various designations, of which that given by Froriep, 83, “primitive vertebral arc ” seems to be the most Widely accepted. Since, however, it represents much more than -a vertebral semi-arch, I have previously, 99, suggested for it the term “ <ins style="font-weight: bold; text-decoration: none;">scleromere”</ins>.</div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Figs. 8, 9 and 10, Plate III, represent wax-plate reconstructions of several scleromeres from the -thoracic region of Embryo II, length '7 mm. The outlines of the condensed tissue ‘are not so sharp in nature as it is necessary to make them in a model of this kind. It is believed, however, that the general form relations are here fairly accurately shown. In Fig. A, Plate II, of the article by Bardeen and Lewis are shown the relations of the scleromeres to other structures.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Figs. 8, 9 and 10, Plate III, represent wax-plate reconstructions of several scleromeres from the -thoracic region of Embryo II, length '7 mm. The outlines of the condensed tissue ‘are not so sharp in nature as it is necessary to make them in a model of this kind. It is believed, however, that the general form relations are here fairly accurately shown. In Fig. A, Plate II, of the article by Bardeen and Lewis are shown the relations of the scleromeres to other structures.</div></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>‘By the fissure of v. Ebner each sclerotome is divided into two portions, of which the posterior in the higher vertebrates plays the chief role in vertebral differentiation. “ scleromere" therefore seems an appropriate designation for the condensed sclerogenous tissue of this half-segment. Goette has recently, 97, brought forward evidence in favor of the View that primarily in the digitates there were two vertebrae to each body-segment. In the higher vertebrates, during embryonic development, the posterior skeletal area of each body-segment alone develops freely. The anterior area becomes fused with the scleromere in front. <del style="font-weight: bold; text-decoration: none;">166 Development </del>of <del style="font-weight: bold; text-decoration: none;">Thoracic Vertebrae </del>in <del style="font-weight: bold; text-decoration: none;">Man</del></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>‘By the fissure of v. Ebner each sclerotome is divided into two portions, of which the posterior in the higher vertebrates plays the chief role in vertebral differentiation. “ scleromere" therefore seems an appropriate designation for the condensed sclerogenous tissue of this half-segment. Goette has recently, 97, brought forward evidence in favor of the View that primarily in the digitates there were two vertebrae to each body-segment. In the higher vertebrates, during embryonic development, the posterior skeletal area of each body-segment alone develops freely. The anterior area becomes fused with the scleromere in front. </div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">This figure represents a horizontal section passing through several spinal ganglia, myotomes and neural processes. The last may be seen extending gradually into the area opposite the myotomic septa, but they still cover the whole posterior half </ins>of <ins style="font-weight: bold; text-decoration: none;">the median surface of the myotome in the region of the section. The processes are connected by membranous thickenings of the mesenchyme of the anterior half of each segment. These membranes may be called interdorsal membranes. They correspond to the interdorsalia of elasmobranchs. Figs. 12, 13, 15 and 16, Idr. M., represent these membranes. A line drawn from A to B in Fig. 12 would pass through an area corresponding to that of the section represented </ins>in <ins style="font-weight: bold; text-decoration: none;">Fig. 4.</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">This figure represents a horizontal section passing through several spinal ganglia, myotomes and neural processes. The last may be seen extending gradually into the area opposite the myotomic septa, but they still cover the whole posterior half of the median surface of the myotome in the region of the section. The processes are connected by membranous thickenings of the mesenchyme of the anterior half of each segment. These membranes may be called interdorsal membranes. They correspond to the interdorsalia of elasmobranchs. Figs. 12, 13, 15 and 16, Idr. M., represent these membranes. A line drawn from A to B in Fig. 12 would pass through an area corresponding to that of the section represented in Fig. 4.</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">In the region where the neural and costal processes spring from the primitive disks membranous septa are likewise differentiated from the anterior halves of the sclerotomes. These septa serve to unite the successive disks. Each is continuous posterially with -a dense tissue which strengthens the primitive disk and anteriorly it extends into the neural and costal processes. The relations of these interdiscal membranes are shown in Figs. 3, 11, 12 and 13, Ids. m. Since at this period structural outlines are by no means sharp, the figures based upon wax-plate reconstructions must be taken as semi-diagrammatic. A line drawn from 0 to d in Fig. 12 would represent essentially the plane of the section shown in Fig. 3.</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">In the region where the neural and costal processes spring from the primitive disks membranous septa are likewise differentiated from the anterior halves of the sclerotomes. These septa serve to unite the successive disks. Each is continuous posterially with -a dense tissue which strengthens the primitive disk and anteriorly it extends into the neural and costal processes. The relations of these interdiscal membranes are shown in Figs. 3, 11, 12 and 13, Ids. m. Since at this period structural outlines are by no means sharp, the figures based upon wax-plate reconstructions must be taken as semi-diagrammatic. A line drawn from 0 to d in Fig. 12 would represent essentially the plane of the section shown in Fig. 3. '</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>During the development of the interdiscal membranes the primitive disks become hollowed out on the posterior surface. A comparison of Fig. 2 with Fig. 3 demonstrates this. The perichordal sheath meanwhile is developed in a ventrodorsal direction so that the area between the primitive disks becomes divided into right and left halves. Figs. 11, 13 and 7 all show this. Each lateral area is filled with a lightly staining mesenchynie which is continuous ventrally and dorsally with the tissue surrounding the spinal column.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>During the development of the interdiscal membranes the primitive disks become hollowed out on the posterior surface. A comparison of Fig. 2 with Fig. 3 demonstrates this. The perichordal sheath meanwhile is developed in a ventrodorsal direction so that the area between the primitive disks becomes divided into right and left halves. Figs. 11, 13 and 7 all show this. Each lateral area is filled with a lightly staining mesenchynie which is continuous ventrally and dorsally with the tissue surrounding the spinal column.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Fig. 17, Plate V, represents a sagittal section cut slightly obliquely through an embryo 12 mm<del style="font-weight: bold; text-decoration: none;">. </del>long. In the region where the chorda (Oh. d.) is cut, the primitive disks may be seen united by a fairly dense tissue, the perichordal septum (Sptm.). Posterior to this region the section passes to one side of the chief axis of the embryo. The intervertebral disks may here be seen separated by a lighter tissue and in the more posterior portion of the section, which passes still more lateral to the chordal region, the tissue between the disks is seen to be continuous with that surrounding the spinal column. In this region the interdiscal membrane (Ids. m.) is seen anterior, the primitive disk posterior to the fissure of v. Ebner (F. v. E.). <del style="font-weight: bold; text-decoration: none;">Charles R. Bardeen 16?</del></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Fig. 17, Plate V, represents a sagittal section cut slightly obliquely through an embryo 12 mm long. In the region where the chorda (Oh. d.) is cut, the primitive disks may be seen united by a fairly dense tissue, the perichordal septum (Sptm.). Posterior to this region the section passes to one side of the chief axis of the embryo. The intervertebral disks may here be seen separated by a lighter tissue and in the more posterior portion of the section, which passes still more lateral to the chordal region, the tissue between the disks is seen to be continuous with that surrounding the spinal column. In this region the interdiscal membrane (Ids. m.) is seen anterior, the primitive disk posterior to the fissure of v. Ebner (F. v. E.).</div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Meanwhile the ventral processes of the thoracic vertebrae extend well into the thoracic wall, giving rise to primitive ribs, illustrated in Fig. B, Plate II, in the article of Bardeen and Lewis, 01.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Meanwhile the ventral processes of the thoracic vertebrae extend well into the thoracic wall, giving rise to primitive ribs, illustrated in Fig. B, Plate II, in the article of Bardeen and Lewis, 01.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Development proceeds rapidly. In Embryo CIX, length 11 mm<del style="font-weight: bold; text-decoration: none;">.</del>, age about <del style="font-weight: bold; text-decoration: none;">five </del>weeks (Figs. 14-16), the conditions are as follows: The neural processes are somewhat better developed than those of the preceding stage, but otherwise are similar in character. The costal processes are considerably farther developed (Bardeen and Lewis, 01, Plate V, Fig. E). At the angle between the neural and costal processes opposim where they join the primitive disks a transverse process, but slightly indicated at the preceding stage, is now fairly clearly marked. Each primitive disk has become further hollowed out at its posterior surface, owing, in all probability, to the conversion of its tissue into that of the area between the disks. The interdiscal membrane (Ids. m.), on the other hand, has become thicker and has extended anteriorly and posteriorly about the area between the disks so that this has become completely enclosed (Figs. 14, 15 and 16). The tissue of each segment immediately anterior to the primitive disk has become greatly thickened and the line between it and the disk indistinct.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Development proceeds rapidly. In Embryo CIX <ins style="font-weight: bold; text-decoration: none;">{{CE109}}</ins>, length 11 mm, age about <ins style="font-weight: bold; text-decoration: none;">five </ins>weeks (Figs. 14-16), the conditions are as follows: The neural processes are somewhat better developed than those of the preceding stage, but otherwise are similar in character. The costal processes are considerably farther developed (Bardeen and Lewis, 01, Plate V, Fig. E). At the angle between the neural and costal processes opposim where they join the primitive disks a transverse process, but slightly indicated at the preceding stage, is now fairly clearly marked. Each primitive disk has become further hollowed out at its posterior surface, owing, in all probability, to the conversion of its tissue into that of the area between the disks. The interdiscal membrane (Ids. m.), on the other hand, has become thicker and has extended anteriorly and posteriorly about the area between the disks so that this has become completely enclosed (Figs. 14, 15 and 16). The tissue of each segment immediately anterior to the primitive disk has become greatly thickened and the line between it and the disk indistinct.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The area between each two primitive disks is still divided by the perichordal septum (Fig. 7). Each half represents the anlage of .a chendrogenous center of the vertebral body. Formation of cartilage has not, however, begun. The thickening of the ventral margin of the primitive disk at this stage represents the “hypochordal Spange,” which Froriep <del style="font-weight: bold; text-decoration: none;">h-as </del>shown to play an important part in the development of the vertebra of birds and of the atlas in mammals. It <del style="font-weight: bold; text-decoration: none;">-</del>has merely a transitory existence in the thoracic region of man.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The area between each two primitive disks is still divided by the perichordal septum (Fig. 7). Each half represents the anlage of .a chendrogenous center of the vertebral body. Formation of cartilage has not, however, begun. The thickening of the ventral margin of the primitive disk at this stage represents the “hypochordal Spange,” which Froriep <ins style="font-weight: bold; text-decoration: none;">has </ins>shown to play an important part in the development of the vertebra of birds and of the atlas in mammals. It has merely a transitory existence in the thoracic region of man.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===Summary===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===Summary===</div></td></tr>
</table>Z8600021https://embryology.med.unsw.edu.au/embryology/index.php?title=Paper_-_Development_of_the_thoracic_vertebrae_in_man&diff=307508&oldid=prevZ8600021 at 00:28, 3 October 20172017-10-03T00:28:36Z<p></p>
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<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>'''Modern Notes:'''[[Musculoskeletal_System_-_Axial_Skeleton_Development|Axial Skeleton Development]] </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>'''Modern Notes:''' [[Musculoskeletal_System_-_Axial_Skeleton_Development|Axial Skeleton Development]] </div></td></tr>
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