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Menstrual Cycle Regulation

Menstrual Cycle Regulation. (a little more complicated than when you learned it in health class!). Meet the Female hormones. FSH (Follicle Stimulating Hormone) released from anterior pituitary stimulates egg development (ripening) & hormone release LH ( Leuteinizing Hormone)

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Menstrual Cycle Regulation

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  1. Menstrual Cycle Regulation (a little more complicated than when you learned it in health class!)

  2. Meet the Female hormones • FSH (Follicle Stimulating Hormone) • released from anterior pituitary • stimulates egg development (ripening) & hormone release • LH (Leuteinizing Hormone) • peak release = release of egg (ovulation) • Estrogen • released from ovary cells around developing egg (follicle) • stimulates growth of lining of uterus • decreasing levels causes menstruation • Progesterone • released from “corpus luteum” in ovaries • (cells that used to take care of developing egg) • stimulates blood supply to lining of uterus • decreasing levels causes menstruation

  3. Egg maturation in ovary releasesprogesterone maintainsuteruslining produces estrogen

  4. Menstrual cycle • Controlled by interaction of 5 hormones • Releasing Hormone (GnRH) • FSH & LH • estrogen • progesterone

  5. corpusluteum ovary yes corpusluteum no Feedback Female reproductive cycle eggmatures & is released(ovulation) builds up uterus lining estrogen progesterone FSH & LH fertilized egg(zygote) maintainsuterus lining HCG pituitarygland pregnancy progesterone GnRH corpus luteum breaks down progesterone drops menstruation maintainsuterus lining hypothalamus

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