The menstrual cycle prepares the uterus for a fertilised egg. How long is an average menstrual cycle from start to finish?
Answers
A woman can easily become a mother from age 12 to 50 because of a fertile cycle which occurs every month regularly.
It is known as the menstrual cycle. The menstrual cycle continues for 28 days.
The first day when it begins, as blood passing out of the vagina, it is known as the first day of the cycle. This remains from 3 to 7 days.
Answer :
a) An average menstrual cycle extends between a period of 28-30 days from the onset of puberty in girls.
b) It starts with the end of the previous menstruation.
c) One of the ovaries develop an egg and release it on the 14th day. This process is called ovulation.
d) The uterus prepares itself for receiving a zygote if fertilization takes place.
e) The walls of the uterus get thick and richly supplied with blood vessels. The uterus also increases in its size.
f) If the egg is not fertilized between the 14th-18th day, the egg is shed off the body.
g) As there is no use of the uterine lining, it too comes off the vagina around 28th day in the form of menstrual flow.