Which of the following stimulates uterine contractions?
A) oxytocin from the posterior pituitary
B) prostaglandin from the decidua
C) progesterone from the placenta
D) both (a) and (b) above.
E) all of these answers.

Question

Quizplus · Accepted Answer

Both oxytocin from the posterior pituitary and prostaglandin from the decidua stimulate uterine contractions. Progesterone from the placenta actually inhibits uterine contractions, so C is incorrect. Therefore, the best choice is D, which includes both A and B. E is also technically correct but less specific than D.

Which of the Following Stimulates Uterine Contractions