What is corpus luteum?

in Human Reproduction by

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  • The structure that develops from the ruptured follicle in the ovary after ovulation.
  • It secretes sex hormones progesterone and some estrogen.
  • During the luteal phase of the ovarian cycle, It is the luteinizing hormone (LH) that stimulates the corpus luteum to produce progesterone.
  • The placenta produces a hormone human chorionic gonadotropin , that maintains the corpus luteum in the ovary during pregnancy.
  • If pregnancy doesn’t occur, the corpus luteum regresses consequently a new cycle begins with menstruation.
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