Which of the following is involved in stimulating milk letdown?
A)increased estrogen levels
B)increased progesterone levels
C)mechanical stimulation of the breasts that cause release of oxytocin
D)secretion of a small amount of milk
E)None of these choices is correct

Question

Quizplus · Accepted Answer

Mechanical stimulation of the breasts causes release of oxytocin, which stimulates the muscles surrounding the milk-producing glands to contract and squeeze the milk out of the nipple (milk letdown). Increased estrogen and progesterone levels are involved in preparing the breast tissue for milk production, but they are not directly involved in milk letdown. Secretion of a small amount of milk is a result of milk letdown, not a cause.

Which of the Following Is Involved in Stimulating Milk Letdown