Question

define menstruation class 10

Answer 1

In the menstruation the Menstrual blood flows from the uterus through the small opening in the cervix and passes out of the body through the vagina. Most menstrual periods last from 3 to 5 days.

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Answer 2

The first mentruation begins at puberty and is called menarche.

Average interval of menstruation in human female is about 28_29 days.

It is a rythemic Change in the reproductive organs of the female primates(monkey,apes and humans).

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