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Fig. 8 Embryo at anterior neural pore closure

This is a globular mass which overhangs the pharynx and mouth region; at the point indicated in Text- fig. 8 there can be seen the remains of the anterior neuropore, the closure of which has been just completed, and the rolled-in edges of the brain wall show very well in the sections and it can be seen that the head ectoderm also istucked a litleinto the groove at the point of closure; the condition is very like that figured and described by Sternberg (1927) in an embryo of 25 somites, and 2-7mm. inlength. Just to the cranial side of the pharyngeal membrane there is a slight downgrowth of the floor of the brain which marks the infundibular region (Text-figs. 1 and 8), and at this point the brain wall and mouth cavity are in contact and it is here that the notochord comes to an end.

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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)
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Reference

West CM. A human embryo of twenty-five somites. (1937) J. Anat., 71(2): 169-200.1. PMID 17104635



Cite this page: Hill, M.A. (2024, February 23) Embryology West08.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:West08.jpg

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G


Reference

West CM. A human embryo of twenty-five somites. (1937) J. Anat., 71(2): 169-200.1. PMID 17104635


Cite this page: Hill, M.A. (2024, February 23) Embryology West08.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:West08.jpg

What Links Here?
© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

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current16:22, 28 January 2012Thumbnail for version as of 16:22, 28 January 2012808 × 376 (36 KB)S8600021 (talk | contribs)==Fig. 8 == {{Template:West1937}} {{Historic Disclaimer}} {{Historic Papers}} ===Reference=== <pubmed>17104635</pubmed>| [http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1252340 PMC1252340] Category:Carnegie Stage 12

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