Menstrual Cycle Regulation

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Presentation transcript:

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) 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

Egg maturation in ovary releases progesterone maintains uterus lining produces estrogen

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

Female reproductive cycle Feedback Female reproductive cycle egg matures & is released (ovulation) builds up uterus lining estrogen ovary corpus luteum progesterone FSH & LH fertilized egg (zygote) maintains uterus lining HCG yes pituitary gland corpus luteum pregnancy GnRH no progesterone corpus luteum breaks down progesterone drops menstruation maintains uterus lining hypothalamus

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