File:Hertig1946b fig08.jpg

From Embryology

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Fig. 8. A drawing of the right half of a 7 somite (1.7 mm.) embryo of the 4th week of development

At this stage, the blood vessels in the embryo, body stalk and chorion are anatomically complete although not quite so in the yolk-sac. The yolk-sac at its junction with the embryo is beginning to eonstrict and is associated with the invagination of the gut entoderm to form the fore and hind gut. (Fig. 2 from Cullen’s “The Umbilicus and Its Diseases,” W. B. Saunders Company.)


Hertig AT. lnvolution of tissues in fetal life: a review. (1946) Anat. Rec. 94: 96-116.

Cite this page: Hill, M.A. (2024, April 21) Embryology Hertig1946b fig08.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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