Question

Assertion(A): Prolactin is also called ‘Milk ejection hormone’.
Reason(R): Prolactin stimulates contraction of smooth muscles of mammary glands.

• A. Both A and R are true and R is the correct explanation of A
• B. Both A and R are true but R is not the correct explanation of A
• C. A is true but R is false
• D. A is false but R is true

Answer 1

The correct option is C

A is true but R is false

Prolactin is a hormone secreted by the pituitary gland that stimulates lactation (milk production). Prolactin levels rise during pregnancy and drop for a short period just before birth, then they rise once again a few hours after delivery, or immediately when the baby is put to the breast. It also has many other functions, including essential roles in the maintenance of the immune system.