Question

How does mensuration occur?
Class 8th answer

Answer 1

Answer:

Menstruation (Menstrual Cycle) - MedicineNet A cycle is counted from the first day of 1 period to the first day of the next period. The average menstrual cycle is 28 days long. Cycles can range anywhere from 21 to 35 days in adults and from 21 to 45 days in young teens.

Answer 2

Explanation:

after every 28 days an egg is released from one ovary,as it releases the walls of uterus thicken in order to nourish the upcoming zygote. if fertilisation doesn't occur in a day then the egg dies and thickended walls break down and bleeding occurs. this bleeding is known as mensuration