Question

What is menstrual cycle ? Name the phases of menstrual cycle?

Answer 1

Definition

Menstrual cycle is a period in which the ovum matures.

Menarche is the onset of menstrual cycle in a young female of age of 13 years.

Menopause is the permanent stoppage of menstrual cycle in a female of 45 years.

There are 4 phases in menstrual cycle :

⇒ Menstrual phase .

⇒ Follicular phase .

⇒ Ovulatory phase .

⇒ Luteal phase .

Explanation :

Ф The menstrual phase  lasts 3-5 days .

Ф The next phase involves growth of follicle.

Ф The follicle ruptures in ovulatory phase .

Ф The corpus luteum forms on the last phase .

Answer 2

Answer:

Explanation:

The sequence of events involving maturation of ovum,ovulation and menstrual flow constitutes a cycle called menstrual cycle.