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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) - PowerPoint PPT Presentation
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AP Biology
Menstrual Cycle Regulation
(a little more complicated than when you learned it in health class!)
Regents Biology
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
Regents Biology
Egg maturation in ovary
releasesprogesterone
maintainsuteruslining
produces estrogen
Regents Biology
Menstrual cycle Controlled by
interaction of 5 hormones Releasing Hormone
(GnRH) FSH & LH estrogen progesterone
Regents Biology
Regents Biology
Regents Biology
Regents Biology
Regents Biology
Regents Biology
Regents Biology
Regents Biology
corpusluteumovary
Female reproductive cycle
pregnancy
maintainsuterus lining
no
yes
Feedback
estrogenegg
matures &is released(ovulation)
builds up uterus lining
FSH & LHprogesterone
progesterone
fertilized egg(zygote)
HCG
corpus luteum breaks downprogesterone drops
menstruation
corpusluteum
maintainsuterus lining
GnRH
pituitarygland
hypothalamus
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