Determine the series of hormonal events that leads to birth
1. Oxytocin stimulates the placenta to secrete prostaglandins.
2. Fetal cortisol stimulates the placenta to secrete estrogen.
3. Prostaglandins dilate the cervix, and with oxytocin, increase the strength of uterine contractions.
4. The high estrogen level stimulates the uterus to form oxytocin receptors.
A) 1, 3, 2, 4 B) 1, 4, 2, 3 C) 2, 4, 1, 3 D) 2, 4, 3, 1
Answer: C
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