Biology, asked by kasojurishika, 4 months ago

what happens to the walls of uterus during menstruation

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Answered by shreyam40665

6

Answer:

Menstrual blood and tissue flow from your uterus through the small opening in your cervix and pass out of your body through your vagina. During the monthly menstrual cycle, the uterus lining builds up to prepare for pregnancy. If you do not get pregnant, estrogen and progesterone hormone levels begin falling.

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