Question

7. Describe the changes that take place during the menstrual cycle from day 1-4 to the following:

a. Unfertilized egg in ovary ____________

b. Uterus lining______________________

Answer 1

see below

Step-by-step explanation:

• If fertilisation does not occur then the ovum disintegrates and endometrial lining of the uterus breaks down . It comes out of the vagina in form of menses .
• If fertilisation does not occur corpus luteum disintegrates. Due to this the progesterone secretion stops which is necessary for the maintaining the endometrial lining.
• This phase is called Menstrual phase , it usually last for 3-5 days .