File:Hertig1956 fig74.jpg

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Fig. 74. Abnormal Previllous Ova about 12 to 13 days

A medium-power view of the section through the greatest diameter of the younger of these abnormal previllous ova showing thin trabeculae of syncytium with dilated lacunae and a relative lack of extraembryonic mesoblast within the ehorionic cavity. Note formation of primordial villus, amniogenesis aml normal appearing germ disc with distended exocoelom. It is doubtful how much longer this deficient placenta would have maintained the integrity of corpus luteum function. It would appear that early abortion might well follow the resulting hormonal deficiency. In any event spontaneous abortion is caused by or associated with variable degrees of placental hypoplasia. Carnegie 7770, Section 12-3-5. X 100.


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Reference

Hertig AT. Rock J. and Adams EC. A description of 34 human ova within the first 17 days of development. (1956) Amer. J Anat., 98:435-493.


Cite this page: Hill, M.A. (2024, May 24) Embryology Hertig1956 fig74.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Hertig1956_fig74.jpg

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