File:Hertig1956 fig62.jpg

From Embryology

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Fig. 62. 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 through the greatest diameter of the ovum shown in figure 61. Note the two nearly normal blastomeres on the right contrasted with the two paler ones whose nuclei are undergoing degeneration. Other blastomeres not shown in this section were. multinucleate and/or indistinct with nuclear masses or dense nuclear fragments. Carnegie 8450, Section 8. 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, May 24) Embryology Hertig1956 fig62.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Hertig1956_fig62.jpg

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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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