plzz expain mensturational cycle in simple words..
You may either refer to the answer provided by Pankaj or follow the link-
@Pankaj:- Good efforts, keep posting!!
in girls by the age of 2-13 ovulatuion [ releasing of egg by the ovary] starts taking place . uterus walls thicken to receive the fertilized egg . this is so because development of a baby takes place in the uterus . but if the egg is not fertilized within 28 days it comes out with uterus lining and other secretions . this is known as menstruation cycle which repeats itself after every 28 days . it stops by the last menstruation knoewn as menopause , ending the ability of the woman to bear babies