The Milk Let-Down Reflex is Most Associated With

Question

The milk let-down reflex is most associated with
A) estrogen.
B) oxytocin.
C) prolactin.
D) hCG.

Accepted Answer

The milk let-down reflex is caused by the hormone oxytocin, which is released from the posterior pituitary gland in response to suckling or nipple stimulation. This hormone causes the milk to be released from the mammary glands and into the ducts for breastfeeding. Estrogen, prolactin, and hCG are also involved in lactation, but not specifically in the let-down reflex.