The correct answer is E) progesterone.
High levels of oxytocin, estrogen, prostaglandins, and stretch of the myometrium all favor labor and childbirth. Oxytocin is a hormone that stimulates contractions of the uterus during labor. Estrogen helps to regulate and prepare the uterus and cervix for labor. Prostaglandins also help to soften and thin the cervix, preparing it for childbirth. The stretch of the myometrium (the muscular middle layer of the uterus) signals the release of oxytocin and promotes contractions.
On the other hand, high levels of progesterone actually inhibit labor and maintain pregnancy. Progesterone helps to relax the muscles of the uterus and prevent contractions before it is time for labor to begin. As pregnancy progresses and it is time for labor to start, progesterone levels decrease, allowing labor to begin.
High levels reduce the likilyhood that Each of the following favors labor and child birth except labor will begin .
A) oxytocin
B)estrogen
C)prostaglandins
D)stretch of the myometrium
E)progesterone
1 answer