File:Rugh 046.jpg

Production of ova and the process of ovulation

(Top) Section through a primary oocyte of Rana pipiens showing the absence of the vitelUne membrane, the presence of the follicle and cyst wall, and the predetermined area of ultimate follicular rupture. {Center) Mature ovum with axial gradient of pigment and yolk. The vitelline membrane is now present, and the cyst wall of smooth muscle cells is stretched.

(Bottom) Ovarian egg partially emerged from its follicle during ovulation. Note degree of constriction, contraction of cyst wall, and fully developed vitelline membrane around the entire egg.

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Reference

Rugh R. Book - The Frog Its Reproduction and Development. (1951) The Blakiston Company.

Cite this page: Hill, M.A. (2024, April 19) Embryology Rugh 046.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Rugh_046.jpg

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