Question

_______ hormone triggers milk release in lactating females.

• A. Glucagon
• B. Vasopressin
• C. Oxytocin
• D. Prolactin

Answer 1

The correct option is C

Oxytocin

Oxytocin is secreted from the posterior lobe of the pituitary and is actually produced in the neurosecretory cells of the hypothalamus. The release of the milk for the baby is facilitated by oxytocin. When a baby sucks at the breast of its mother, the stimulation leads to oxytocin secretion into the blood, which then causes milk produced to be let down into the breast.Oxytocin also facilitates childbirth by stimulating the contraction of smooth muscles in the uterine wall. Prolactin is responsible for milk production.