List 2 functions of prolactin. 1A. 4 points 1. On Day 1, FSH levels begin to increase. A few days later, FSH levels decrease and remain low through the rest of the preovulatory phase. Levels surge at the time of ovulation.
Levels are low throughout the postovulatory phase.
Stimulate milk production by the mammary glands during breastfeeding. Stimulate progesterone production by the corpus luteum.