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corpus luteumFrom: fiona (anonymous@obgyn.net)Fri, 30 Mar 2001 19:35:15 -0600 (CST)
Dear all, this is the name of the structure which releases a mature egg, after ovulation, this follicle collapses, having expelled the product the cells become vascularized and the cells release hormones, they secrete mainly progesterone, but also oestrogen. This is important in preparing the endometrium for implantation of fertilized eggs, however the implanting embryo produces chemical signals which maintain the corpus luteum, together ensuring that progesterone remains high enough to allow early stages of pregnancy to continue. When you worry about cysts early in pregnancy on your ovary, this is what they are in most all cases, perfectly normal, indeed necessary in the early stages to continue the pregnancy.In women the newly implanted blastocyst secretes hCG which may be detected 3-4 days post implantation, this seems to provide the continuing stimulus for progesterone production in the Corpus luteum, the production of hCG rises exponentially in humans for about 8 weeks, it is maintained for around 8 weeks then declines, at which time the corpus luteum also atrophies, by this time the placenta produces progesterone in large quantaties I hope that I have got all of this right ?
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