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Ovarian follicle
Ovarian follicle is a roughly spheroid cellular aggregation set found in the ovaries. It also secretes hormones that influence stages of the menstrual cycle. Women begin puberty with about 400,000
follicles, each with the potential to release an egg cell (ovum) at ovulation for fertilization. These eggs are developed only once every menstrual cycle.
==Structure==
Ovarian follicles are the basic units of female reproductive biology. Each of them contains a single oocyte (immature ovum or egg cell). These structures are periodically initiated to grow and develop, culminating in ovulation of usually a single competent oocyte in humans. They also consists of granulosa cells and theca of follicle.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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