Ovarian cycle, artwork

Ovarian cycle, artwork

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Credit: HENNING DALHOFF / SCIENCE PHOTO LIBRARY

Caption: Ovarian cycle, computer artwork. Once sexual maturity is reached up to 20 oocytes start developing into eggs (ovums) every menstrual cycle. Only one will reach full maturity as a Graafian follicle (right) and release its egg at ovulation (bottom right). The follicle then develops into a corpus luteum (yellow), which secretes progesterone to build up the lining of the uterus, ready for a fertilised egg. If there is no fertilised egg after 12 days it stops secreting and degenerates into a corpus albicans (left).

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Keywords: anatomical, anatomy, annotated, artwork, biological, biology, cell, corpus albicans, corpus lutem, cycle, developing, development, female reproductive system, follicle, follicular, graafian follicle, illustration, maturation, maturing, oocyte, ovarian follicle, ovary, ovulating, ovulation, primary follicle, reproduction, secondary oocyte, white background

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