Graafian follicle

Graafian follicle

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Caption: 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).

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Keywords: anatomy, animal body, bovine, cow, de graaf, de organis, egg, female, female reproductive system, follicle, generationem inservientibus, graafian, historical image, imagery, ovarian, ovum, regnier, reproduction, reproductive organs, reproductive system, scientific discovery

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