1 The mons pubis, clitoris, prepuce, and external urethral orifice are anterior to the vaginal opening.
2 Oxytocin regulates milk ejection from the mammary glands.
3 The hormones responsible for the proliferative phase of endometrial growth are estrogens; for ovulation, LH; for growth of the corpus luteum, LH; and for the midcycle surge of LH, estrogens.
4 This is negative feedback because the response is opposite to the stimulus. Decreasing levels of estrogens and progesterone stimulate release of GnRH, which, in turn, increases production and release of estrogens.