Graafian follicle. Original illustration of a mammalian graafian follicle (upper left,B) in a cow ovary,drawn by its discoverer Regnier de Graaf. Several microscopic ova (eggs) develop within the ovary (upper left) during the menstrual cycle in female mammals. At ovulation a single mature follicle ruptures,releasing the mature ovum into the fallopian tube (in lower frame) where it may be fertilised. The ruptured follicle then becomes a hormone-producing body known as the corpus luteum. Originally published in De Organis Generationem Inservientibus (1672) | |
Licence : | Droits gérés |
Crédit: | Science Photo Library |
Taille de l’image : | 3425 px × 5113 px |
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