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Fig. 7. Wolffian Duct

The Wolffian duct (mesonephric duct) comes to an end before reaching the cloaca, and close under the ectoderm; yet the relationship between ectoderm and duct is not so close at the very end of the duct as it is some distance further cranialwards; I show (Text-fig. 7) camera lucida drawings of the last 11 sections of the duct and adjacent ectoderm; at about the bend of the duct or slightly to the caudal side of this, the duct is so close to the ectoderm that I was at first under the impression that an actual opening of the duct on to the surface was present at this point, especially as the ectoderm here is rather irregular; such an opening, however, does not exist, and it is only that there is very close relationship and, indeed, actual contact between the duct and the ectoderm, as may be seen in the figure.

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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 27) Embryology West07.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:West07.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 27) Embryology West07.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:West07.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 2012984 × 153 (15 KB)S8600021 (talk | contribs)==Fig. 7 == {{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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