Oxytocin Is a Hormone That Controls Many Responses and Functions

Multiple Choice

Oxytocin is a hormone that controls many responses and functions in the body,including uterine contractions during labor.The movement of the baby down the uterus and into the cervix activates stretch receptors,which stimulate the hypothalamus to release more oxytocin and increase the frequency of contractions.This is an example of

A) a negative feedback loop.
B) a positive feedback loop.
C) acclimatization.
D) vasoconstriction.
E) osmoregulation.