Oxytocin ________.
A) release is an example of a positive feedback control mechanism
B) is an adenohypophyseal secretion
C) exerts its most important effects during menstruation
D) controls milk production

Question

Quizplus · Accepted Answer

Oxytocin release is an example of a positive feedback control mechanism. As oxytocin is released during childbirth, it causes contractions which then stimulate more oxytocin release, leading to stronger contractions and ultimately childbirth.

Answer: D
 Oxytocin controls milk production in lactating females. When a baby suckles at the breast, it triggers the release of oxytocin which in turn causes the muscles around the milk-producing cells in the breast to contract, causing milk to be released.