File:Hertig1945d fig17.jpg

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Fig. 17. A mid-cross section of the embryo and adjacent chorion of a 16-day ovum

The double-layered amnion is attached by mesoblast to the adjacent chorion. The amniotic cavity is approximately equal in size no the yolk-sac cavity. The latter is bounded by the endoderm above and the double-layered yolk-sac elsewhere.

Carnegie 7802. section 44-3-5. X 100.


Hertig AT. On the development of the amnion and exocoelomic membrane in the previllous human ovum. (1945) Yale J Biol Med. 18:107-15. PubMed 21007544

Cite this page: Hill, M.A. (2024, April 22) Embryology Hertig1945d fig17.jpg. Retrieved from

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

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