File:Odgers1938 fig04.jpg: Difference between revisions

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Plate I Fig 4

Abbreviations

R.B.R. right bulbar ridge.
L.B.R. left bulbar ridge.
R.S.T. right superior tubercle of the A.-V. cushions.
R.I.T. right inferior tubercle of the A.-V. cushions.
I.V.S. interventricular septum.
A.V.C. auriculoventricular cushions.
B.A.C. bulbo-auricular channel.

Figs. 3-5. Sections through this region of the heart in a 12-5 mm. embryo ( x 80).

Fig. 3 shows the interventricular septum, I. V.S., capped by cushion tissue (X), which is in contact with the right bulbar ridge, R.B.R.

In Fig. 4, which is the next section below Fig. 3, this tissue X is connected with both the right bulbar ridge, R.B.R., and with the A.-V. cushions, A.V.0.

Fig. 5 is a section three below the last and shows the proliferating tissue joining the A.-V. cushions, A.V.0. The junction between the two is marked on either side by a notch. The bulbo-auricular channel, B.A.C., appears in Fig. 3 as a. narrow cleft between the right bulbar ridge, R.B.R., and the A.-V. cushions, A. V.0.: in Fig. 4 this channel is better marked, while in Fig. 5 it is seen to be continuous with the right auricle.

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Pages where the terms "Historic" (textbooks, papers, people, recommendations) appear on this site, and sections within pages where this disclaimer appears, indicate that the content and scientific understanding are specific to the time of publication. This means that while some scientific descriptions are still accurate, the terminology and interpretation of the developmental mechanisms reflect the understanding at the time of original publication and those of the preceding periods, these terms, interpretations and recommendations may not reflect our current scientific understanding. (More? Embryology History \| Historic Embryology Papers)

Reference

Odgers PN. The development of the pars membranacea septi in the human heart. (1938) J Anat. 72(2): 247-59. https://www.ncbi.nlm.nih.gov/pubmed/17104688 PMID 17104688]

Cite this page: Hill, M.A. (2024, June 22) Embryology Odgers1938 fig04.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Odgers1938_fig04.jpg

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current	11:16, 25 January 2016		507 × 716 (112 KB)	Z8600021 (talk \| contribs)	==Plate I== Abbreviations * R.B.R. right bulbar ridge. * L.B.R. left bulbar ridge. * R.S.T. right superior tubercle of the A.-V. cushions. * R.I.T. right inferior tubercle of the A.-V. cushions. * I.V.S. interventricular septum. * A.V.C. auriculoventr...

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@@ Line 1: / Line 1: @@
-==Plate I==
+==Plate I Fig 4==
 Abbreviations
@@ Line 10: / Line 10: @@
 * B.A.C. bulbo-auricular channel.
-Fig. 1. A section immediately caudal to the interventricular foramen in an 11-2 mm. embryo
-( x 80) to show that a tongue-shaped proliferation from the A.-V. cushion, R.I.T., is making
-contact with the right side of the interventricular septum, I. V.S., ventral to its dorsal border.
-Fig. 2. A section through the interventricular foramen in an 11-4 mm. embryo ( x 80). It shows the
-right bulbar ridge, R.B.R., in contact with the right superior tubercle of the A.—V. cushions,
-R.S.T., to form the bulbo-auricular channel, B.A.0. R.I.TL marks the inferior A.-V. tubercle
-proliferating cranialwards.
-Figs. 3-5. Sections through this region of the heart in a 12-5 mm. embryo ( x 80). Fig. 3 shows the
+Figs. 3-5. Sections through this region of the heart in a 12-5 mm. embryo ( x 80).
-interventricular septum, I. V.S., capped by cushion tissue (X), which is in contact with the
-right bulbar ridge, R.B.R. In Fig. 4, which is the next section below Fig. 3, this tissue X is
-connected with both the right bulbar ridge, R.B.R., and with the A.-V. cushions, A.V.0.
-Fig. 5 is a section three below the last and shows the proliferating tissue joining the A.-V.
-cushions, A.V.0. The junction between the two is marked on either side by a notch. The
-bulbo-auricular channel, B.A.C'., appears in Fig. 3 as a. narrow cleft between the right
-bulbar ridge, R.B.R., and the A.-V. cushions, A. V.0.: in Fig. 4 this channel is better marked,
-while in Fig. 5 it is seen to be continuous with the right auricle.
-Figs. 6-7. These are sections through the heart of a 14-5 mm. embryo ( x 80). In Fig. 6, which
+Fig. 3 shows the interventricular septum, I. V.S., capped by cushion tissue (X), which is in contact with the
-is through the centre of the interventricular foramen, the A.-V. cushion, A. V.0'., is seen to be
+right bulbar ridge, R.B.R.
-proliferating, while similar cushion tissue, X, caps the interventricular septum, I. 17.8. In
-Fig. 7 the proliferating cushion tissue is making contact with that on the septum, X, while its
-right border is joined by the right bulbar ridge, R.B.R., as it encloses the bulbo-auricular
-channel, BA .0.
+In Fig. 4, which is the next section below Fig. 3, this tissue X is connected with both the right bulbar ridge, R.B.R., and with the A.-V. cushions, A.V.0.
-{{Historic Disclaimer}}
+Fig. 5 is a section three below the last and shows the proliferating tissue joining the A.-V.
+cushions, A.V.0. The junction between the two is marked on either side by a notch. The
-===Reference===
+bulbo-auricular channel, B.A.C., appears in Fig. 3 as a. narrow cleft between the right
+bulbar ridge, R.B.R., and the A.-V. cushions, A. V.0.: in Fig. 4 this channel is better marked, while in Fig. 5 it is seen to be continuous with the right auricle.
-Odgers PN. [[Paper - The Development of the Pars Membranacea Septi in the Human Heart|The Development of the Pars Membranacea Septi in the Human Heart]]. J Anat. 1938 Jan;72(Pt 2):247-59. PMID 17104688
-{{Footer}}
+{{Odgers1938 figures}}