Question

Continued secretion of milk is maintained by

• A. Prolactin
• B. LH
• C. Relaxin
• D. STH

Answer 1

The correct option is A Prolactin

A. Prolactin, also known as lactogenic hormone is produced by the pituitary gland. This hormones stimulates the production of milk in mammary glands during pregnancy.

B. Luteinizing hormone or LH stimulates growth of ovarian follicles in females. In males this hormone is called interstitial cell stimulating hormone or ICSH and affects the Leydig cells of testes.

C. Relaxin is a protein hormone secreted by placenta. It dilates the cervix and aids in childbirth.

D. STH or somatotropin hormone is known as growth hormone and stimulates body growth and carbohydrate, protein, fat metabolism.

Hence, continued secretion of milk is maintained by prolactin. So, the correct answer is 'Prolactin'.