The following are related to corpus luteum except
The estrogen attains a lower level and maintains a plateau curve as against a peak rise in follicular phase. Progesterone attains its highest peak about 8 days(22nd day of menstual cycle) after the LH peak Regression of corpus luteum is attrubuted to fall in LH level and rise in the level of estrogen and PGF2alpha. Ref: Shaw Gynecology 17 e pg 40.