Shedding of the functional layer of the endometrium also known as menstruation occurs when a) blood level of progesterone from the corpus luteum increases c) blood level of FSH falls off a) the corpus...

Extracted text: Shedding of the functional layer of the endometrium also known as menstruation occurs when a) blood level of progesterone from the corpus luteum increases c) blood level of FSH falls off a) the corpus luteum degenerates and turns into corpus albican e) the corpus luteum starts secreting a large amount of estrogen O Focus nglish (United States)