Which of the following physiologic processes is caused by estrogens?
A) Increased release of gonadotropin-releasing hormone (GnRH)
B) Stimulation of lactation in the postpartum period
C) Promotion of ovarian follicle growth
D) Progesterone synthesis
Ans: C
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Among the effects of estrogens is the promotion of ovarian follicle growth. Increased estrogen levels normally have an inhibitory effect on GnRH levels, whereas progesterone synthesis is not a result of estrogen's. Lactation is stimulated by prolactin.
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