The hormone primarily responsible for milk synthesis is
A) progesterone.
B) oxytocin.
C) prolactin.
D) estrogen.
E) growth hormone.

Question

Quizplus · Accepted Answer

The hormone primarily responsible for milk synthesis is prolactin. During pregnancy, prolactin levels increase to stimulate milk production in preparation for lactation. After childbirth, prolactin levels remain high and continue to stimulate milk production in response to the baby's demand for milk. Oxytocin, on the other hand, is responsible for milk ejection or the let-down reflex, which is the release of milk from the breast in response to the baby's suckling. Progesterone and estrogen play a role in breast development during puberty and pregnancy, but they are not primarily responsible for milk synthesis. Growth hormone may have some effect on milk production, but it is not the primary hormone involved.

The Hormone Primarily Responsible for Milk Synthesis Is