Question

Inhibition of secretion of which of the following hormone is necessary for disintegration of corpus luteum?

• A. LH
• B. Progesterone
• C. LTH
• D. FSH

Answer 1

The correct option is A LH

Progesterone is produced by the corpus luteum in the ovary. Its function is to prepare the endometrium (lining of the uterus) for the reception and development of the fertilised ovum. It also suppresses the production of oestrogen after ovulation has taken place. During pregnancy, corpus luteum continues to produce progesterone. However, if pregnancy does not occur, corpus luteum starts disintegrating and the oestrogen and progesterone levels fall suddenly on about 28${}^{th}$ day and it results is the start of the menstrual cycle and the endometrium starts sloughing.

So, the correct answer is option B.