____ stimulates the growth of cells that will produce milk proteins.
A) Estrogen.
B) Prolactin.
C) Oxytocin.
D) Prostaglandin.
E) Progesterone.

Question

Quizplus · Accepted Answer

Prolactin is the hormone that stimulates the growth and development of the milk-producing cells in the mammary gland. It is released from the pituitary gland in response to the suckling of the infant, and promotes milk production and secretion. Estrogen, progesterone, and oxytocin also play important roles in lactation, but they do not directly stimulate the growth of milk-producing cells. Prostaglandin is not involved in lactation.

____ Stimulates the Growth of Cells That Will Produce Milk