what its menstruation cycle?
Answers
have to write full explanation..
all the best....
When a girl reaches the age of about 10 to 20 years (puberty), the sex hormones cause the ova to become mature. Every 28 day one mature ovum is realised from the ovary into the oviduct and this is known as ovulation.
Before ovulation, the inner will of uterus become thick, and with full of blood capillaries. Now at this stage uterus prepares to receive the fertilised ovum. If the ovum does not get fertilized, then the thick wall of uterus along with blood vessels and dead ovum comes out of vagina in form of bleeding known as menstruation.
Menstruation lasts for 3 to 5 days. When menstruation is over, the inner wall of uterus start building up again so that it may receive the next fertilized ovum.
Menstruation stops when women gets pregnant and when women reaches the age of about 50 years, menstruation stop permanently. This is known as menopause and in this stage woman lose the capacity of carrying embryo.