In the last few weeks of pregnancy,the level of estrogen in a woman's blood rises.This causes
A) the fetus to develop more rapidly.
B) the amount of prostaglandin secreted by the placenta to decrease.
C) the muscles of the uterus to become more sensitive to the hormone oxytocin.
D) even more estrogen to be released from the pituitary.

Question

Quizplus · Accepted Answer

The rise in estrogen levels during the last few weeks of pregnancy causes the muscles of the uterus to become more sensitive to the hormone oxytocin. This makes the contractions of the uterus stronger and more coordinated, helping to initiate and progress labor.

In the Last Few Weeks of Pregnancy,the Level of Estrogen