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Embryology - 19 Apr 2024 Expand to Translate
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Streeter GL. Development of the interfore-brain commissures in the human embryo. (1907) Amer. J Anat. :56.

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This historic 1907 paper by Streeter is a brief note on human embryo corpus callosum development.

Modern Notes: hippocampus

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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)

Development of the Interfore-brain Commissures in the Human Embryo

George Linius Streeter (1873-1948)

By George L. Streeter.

Wistar Institute of Anatomy, Philadelphia.

A morphological study of the corpus callosum and the commissure of the hippocampus, based on a series of wax-plate reconstructions of human embryos varying from 80 to 150 mm. in length. All three structures cross the median line in that portion of the brain wall developed from the lamina terminalis.

In 80 mm. embryos the corpus callosum consists of a round bundle of fibers lying directly on the commissure of the hippocampus, representing the condition found in non-placental animals. The succeeding growth consists in the lengthening of the fornix and caudal migration of the hippocampal commissure, the latter remaining in close relation to the caudal end of the corpus callosum, which in the meantime, by increase in number of fibers, has extended anterior to the anterior commissure and posterior so as to deck over the region of the third ventricle.

The formation of a cavity in the septum lucidum occurs in embryos of about 95 mm. The anterior or olfactory division of the anterior commissure does not enter the olfactory bulb, but is traced to the cortex dorsal to the bulb.

Cite this page: Hill, M.A. (2024, April 19) Embryology Paper - Development of the interfore-brain commissures in the human embryo. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Paper_-_Development_of_the_interfore-brain_commissures_in_the_human_embryo

What Links Here?

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-{{Ref-Streeter1907}}
+{{Ref-Streeter1907b}}
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 ! Online Editor&nbsp;
 |-
-| [[File:Mark_Hill.jpg|90px|left]] This historic 1907 paper by Streeter described central nervous system neural development. The "papilla of Retzius" was first described by Gustaf Retzius (1842–1919) in  ''Das Menschenhirn''. (1895) Stockholm, one of the first photographic atlases of the brain. Retzius was also a supporter of the "neuron theory" of [[Embryology History - Santiago Ramón y CajalRamón y Cajal]].
+| [[File:Mark_Hill.jpg|90px|left]] This historic 1907 paper by Streeter is a brief note on human embryo corpus callosum development.
-See also:
-{{#pmid:21109741}}
-{{#pmid:20979584}}
-:"The fetal cortex consists of a densely packed band of cells in which only the superficial marginal zone (layer 1) is readily distinguished. In fetuses of 16–24 weeks gestation it is not uncommon to see irregularity of the cells of layer 1 and 2 of the cortex with projections of layer 2 cells into the relatively acellular layer 1 or molecular layer (Fig. 1). These are called ‘Papillae of Retzius’ and are commonly seen in the absence of any other abnormality. "
 <br><br>
 {{Streeter Links}}
 <br><br>
-'''Modern Notes:'''
+'''Modern Notes:''' {{hippocampus}}
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@@ Line 25: / Line 19: @@
 [[File:George_L._Streeter.jpg|thumb|200px|alt=Embryology History George Streeter|link=Embryology History - George Streeter|George Linius Streeter (1873-1948)]]
-By George L. Streeter. Wistar Institute of Anatomy, Philadelphia.
+By [[Embryology History - George Streeter|George L. Streeter]].
+Wistar Institute of Anatomy, Philadelphia.
+A morphological study of the corpus callosum and the commissure of the {{hippocampus}}, based on a series of wax-plate reconstructions of human embryos varying from 80 to 150 mm. in length. All three structures cross the median line in that portion of the brain wall developed from the lamina terminalis.
+In 80 mm. embryos the corpus callosum consists of a round bundle of fibers lying directly on the commissure of the hippocampus, representing the condition found in non-placental animals. The succeeding growth consists in the lengthening of the fornix and caudal migration of the hippocampal commissure, the latter remaining in close relation to the caudal end of the corpus callosum, which in the meantime, by increase in number of fibers, has extended anterior to the anterior commissure and posterior so as to deck over the region of the third ventricle.
+The formation of a cavity in the septum lucidum occurs in embryos of about 95 mm. The anterior or olfactory division of the anterior commissure does not enter the olfactory bulb, but is traced to the cortex dorsal to the bulb.
-A morphological study of the corpus callosum and the commissure
+{{Footer}}
-of the hippocampus, based on a series of wax-plate reconstructions of
+[[Category:Hippocampus]][[Category:Neural]][[Category:Historic Embryology]][[Category:1900's]]
-human embryos varying from 80 to 150 mm. in length. All three structures cross the median line in that portion of the brain wall developed
-from the lamina terminalis. In 80 mm. embryos the corpus callosum
-consists of a round bundle of fibers lying directly on the commissure of
-the hippocampus, representing the condition found in non-placental
-animals. The succeeding growth consists in the lengthening of the
-fornix and caudal migration of the hippocampal commissure, the latter
-remaining in close relation to the caudal end of the corpus callosum,
-which in the meantime, by increase in number of fibers, has extended
-anterior to the anterior commissure and posterior so as to deck over
-the region of the third ventricle. The formation of a cavity in the
-septum lucidum occurs in embryos of about 95 mm. The anterior or
-olfactory division of the anterior commissure does not enter the olfactory
-bulb, but is traced to the cortex dorsal to the bulb.

Paper - Development of the interfore-brain commissures in the human embryo: Difference between revisions

Latest revision as of 11:14, 17 January 2020

Development of the Interfore-brain Commissures in the Human Embryo