Question

Disintegration of corpus luteum occurs due to inhibition of secretion of hormone

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

Answer 1

The correct option is C LH

Corpus luteum
After ovulation, the granulosa cells and interstitial cells of the Graffian follicle form a mass of large and yellowish conical cells called the corpus luteum. It secretes a large amount of progesterone for the maintenance of the endometrium lining for pregnancy.

LTH
Prolactin or luteotropic hormone (LTH) initiates the secretion of milk by the mammary glands.

FSH
Follicle-stimulating hormone (FSH) from the anterior pituitary gland induces the formation of Graafian follicles and the production of estrogen by the Graafian follicle.

Progesterone
Progesterone maintains the thickness of the endometrium for maintaining pregnancy. Low levels of progesterone lead to menstruation.

LH
Luteinizing hormone (LH) causes the rupture of the Graafian follicle (ovulation). It also regulates the development of the corpus luteum. Low levels of LH cause disintegration of the corpus luteum leading to a sudden decline in progesterone levels that causes menstruation.

Final answer
(D) LH