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Reproductive Hormones Overview - Anatomy & Physiology (view source)
Revision as of 21:17, 7 October 2011
, 21:17, 7 October 2011→Prostaglandin (PGE2)
===Prostaglandin (PGE<sub>2</sub>)===
===Prostaglandin (PGE<sub>2</sub>)===
PGE<sub>2</sub> is another form of prostaglandin that is produced by the ovary, uterus and embryonic membranes. It's target tissue in females is the corpus luteum and the oviduct where it helps induce ovulation and the secretion of progesterone from the corpus luteum.
PGE<sub>2</sub> is another form of prostaglandin that is produced by the ovary, uterus and embryonic membranes. This form of prostaglandin also has other important roles including vasodilation, smooth muscle relaxation, and inhibition of the release of noradrenaline from sympathetic nerve terminals.
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In females it's target tissue is the corpus luteum and the oviduct where it helps induce ovulation and the secretion of progesterone from the corpus luteum. PGE<sub>2</sub> also plays an important role during labour where it aids the softening of the cervix and aids stimulation of uterine contractions.
===Human Chorionic Gonadotrophin (hCG)===
===Human Chorionic Gonadotrophin (hCG)===
hCG is a form of glycoprotein that is synthesised within the trophoblast cells of a [[Blastocyst_Embryonic_Development_-_Anatomy_%26_Physiology|blastocyst]]. In females the target tissue is the ovary where it results in the ovarian production of progesterone. In males hCG increases the growth of the foetal testes.
hCG is a form of glycoprotein that is synthesised within the trophoblast cells of a [[Blastocyst_Embryonic_Development_-_Anatomy_%26_Physiology|blastocyst]]. In females the target tissue is the ovary where it results in the ovarian production of progesterone. In males hCG increases the growth of the foetal testes.