MENSTRUAL CYCLE, DRAWING

Illustration of hormone control over the menstrual cycle. - The hypothalamic cycle : gonadotropin-releasing hormone (GnRH) released in the hypothalamus causes the hypophyseal secretion of two gonadotropin hormones (LH and FSH). - The hypophyseal cycle : The FSH (freen losange) intervenes in the development and maturing of one follicle per cycle. The LH (blue triangle) allows the formation of the corpus luteum. LH and FSH trigger ovulation. - The ovarian cycle : Oestradiol (purple square) causes positive retrocontrol on the secretion of LH that is responsible for ovulation. The corpus luteum secretes progesterone (pink circle) which causes negative retrocontrol on the hypothalamo-hypothyseal complex during the luteal phase.

Credit
BSIP / JACOPIN

Dimensions
4252 x 4662 pixels

Print Size @ 300 dpi
14 x 16 inches / 36 x 39 cm

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