Question

What is the duration of menstrutation cycle?

[1 marks]

30


31


25


28

Answer 1

The menstrual cycle is a series of natural changes in hormone production and the structures of the uterus and ovaries of the female reproductive system that make pregnancy possible. The ovarian cycle controls the production and release of eggs and the cyclic release of estrogen and progesterone.

Answer 2

28 days ____________________________