Onset of labor may result from
A) increased estrogen secretion by the placenta.
B) increased glucocorticoid secretion by the mother.
C) increased secretion of oxytocin by the fetus.
D) increased progesterone secretion by the placenta.
E) decreased prostaglandins.

Question

Quizplus · Accepted Answer

Increased estrogen secretion by the placenta contributes to the onset of labor by promoting uterine contractions and increasing the sensitivity of the uterus to oxytocin.

Onset of Labor May Result from