Menstruation Is Triggered by

question 60

Multiple Choice

Menstruation is triggered by

• A) reduced secretion of estradiol and progesterone from the corpus luteum.
• B) a surge of androgens from the adrenal cortex.
• C) implantation of a fertilized ovum in the uterus.
• D) a surge of estrogens from the adrenal cortex.
• E) increased secretion of estrogen and progesterone from the corpus luteum.