File:Pincus1935-fig06.jpg

From Embryology

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Plate 1

FIG. 1. Ovarian egg obtained by puncture of a follicle from the ovary of an unmated rabbit.

FIG. 2. Ovarian egg obtained by puncture of a follicle from the ovary of a doe mated 2 hours previously. The chromatin material condenses to tetrads. The vesicular membrane is still present.

FIG. 5. Ovarian egg from a doe mated 6 hours previously. The first polar spindle begins to form.

FIG. 6. Ovarian egg from a doe mated 8 hours previously. The first polar body has been given off.

FIG. 9. Ovarian egg from a doe which had received 2 cc. thyroxin intravenously. Tetrads have formed in a vesicular nucleus.

FIG. 10. Ovarian egg from unmated doe, inseminated with normal sperm in vitro. Sperm penetration has occurred. Note sperm head at lower right periphery.


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Historic Embryology Papers

Reference

Pincus G. and Enzmann EV. The comparative behavior of mammalian eggs in vivo and in vitro. (1935) J Exp Med. 62(5): 665-75. PMID 19870440



Cite this page: Hill, M.A. (2024, February 21) Embryology Pincus1935-fig06.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Pincus1935-fig06.jpg

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current13:11, 16 November 2015Thumbnail for version as of 13:11, 16 November 2015563 × 700 (69 KB)Z8600021 (talk | contribs)==Plate 1== FIG. 1. Ovarian egg obtained by puncture of a follicle from the ovary of an unmated rabbit. FIG. 2. Ovarian egg obtained by puncture of a follicle from the ovary of a doe mated 2 hours previously. The chromatin material condenses to tetra...