File:Hamilton1949 fig10.jpg

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Fig.10. A general low-power view of the Barnes embryo

Estimated to be about 10.5 days old. The extent of the syncytio- and cyto-trophoblast in the different parts of the vesicle is shown. The embryonic rudiment has differentiated into columnar ectoderm and embryonic endoderm, the latter is continuous with Heuser's membrane. The extra-embryonic mesoblast has been artificialy separated from the cytotrophoblast. X.C.


Hamilton WJ. Early stages of human development. (1949) Ann R Coll Surg Engl. 4(5): 281-94. PMID 18121228 PMC2238331

Cite this page: Hill, M.A. (2024, April 22) Embryology Hamilton1949 fig10.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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