Question

Dezcribe the role of pitutary and ovarian hormone diring menstrual cucle in human female

Answer 1

pituitary gland secrete two hormones
progesterone and estrogen
estrogen forms the lining of endometrium
while progesterone maintains it
if fertilization occurs then the endometrium remains intact
and if not the progesterone level decreases and menstruation occurs

Answer 2

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• With the start of a menstrual cycle, pituitary produces FSH hormone which stimulates the ovaries to start the formation and maturation of eggs. With the maturation of these follicles, estrogen level rises in the body indicating the formation of the mature egg. This leads to the completion of the follicular phase.

• The pituitary gland now produces LH hormone which causes the release of an egg from ovary by the process of ovulation. After ovulation, luteal phase begins during which the level of progesterone in the body starts increasing. Progesterone hormone maintains the lining of the wall of the uterus for pregnancy. If pregnancy does not take place then progesterone level falls and menstrual flow begins.