File:Hertig1956 fig64.jpg

Fig. 64. Abnormal ova of the pre-implantation stage

Appear to be 3 to 5 days of age on the basis of coital data, endometrial findings and ovular development. Abnormality of nulltinucleated blastomeres and some show variable degrees of cellular degeneration or necrobiosis.

A section of the ovum shown in figure 63. Note variation in size and shape of the blastomeres (many in other sections were multinueleated), the cleft. which may indicate early formation of a segmentation cavity and the mitotic figure. Carnegie 8190, Section 5. X 500.

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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, April 27) Embryology Hertig1956 fig64.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Hertig1956_fig64.jpg

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