Uterine contractions during labor are stimulated by a positive feedback loop involving a pituitary hormone called
A)vasopressin
B)oxytocin
C)prolactin
D)relaxin
E)estrogen

Question

Quizplus · Accepted Answer

Uterine contractions during labor are stimulated by a positive feedback loop involving a pituitary hormone called oxytocin. Oxytocin is released in response to cervical stretching and stimulates uterine contractions, which in turn stimulate more oxytocin release. This cycle continues until the baby is delivered.

Uterine Contractions During Labor Are Stimulated by a Positive Feedback