____ control a woman's menstrual cycle, which usually lasts around ____ days. The pituitary gland in the ____ releases ____. FSH causes one of the eggs in the ovary to ____. It also stimulates the ovaries to make ____. Oestrogen stimulates the ____ gland to release ____. LH triggers the release of an ____ (____). Oestrogen also inhibits any more production of FSH (stopping other eggs ____). It also ____ the uterine lining (endometrium). Once the egg has been released ____ is produced by the empty follicle (called the corpus luteum or a yellow body). This ____ the uterus lining and inhibits LH. a If a woman becomes pregnant, the follicle continues to produce ____ and a ____ is formed. b If pregnancy does not occur, then the corpus luteum stops secreting progesterone and decays into the corpus albicans. This causes the progesterone and oestrogen levels to drop towards the end of the ____ cycle, the uterine lining breaks down and ____ occurs.

The Menstrual Cycle

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