Which of the following is true of the hormone oxytocin?
A) Oxytocin is released from the adrenal gland during orgasm.
B) Oxytocin relaxes smooth muscle.
C) Oxytocin release can induce the ejection of milk in a lactating female.
D) Orgasm causes the release of oxytocin only in females.
E) Oxytocin release is controlled by the anterior pituitary.

Question

Quizplus · Accepted Answer

Oxytocin is indeed involved in the milk ejection reflex in lactating females. It is produced in the hypothalamus and released into the bloodstream by the posterior pituitary gland, not the anterior pituitary or adrenal gland. It affects smooth muscle contraction, not relaxation, and is released during orgasm in both males and females, not just females.

Which of the Following Is True of the Hormone Oxytocin