In physiology of the menstrual cycle, all are true EXCEPT ?
Ovulation follows 36 hours after the onset of LH surge
Follicular phase is constant
Withdrawal of endogenous progesterone results in endometrial breakdown and subsequent menstruation
Average cycle length is 21-35 days
Menstrual cycle Follicular phase is variable. Luteal phase is constant FSH levels rise during ovulation Ovulation follows 36 hours after the onset of LH surge or 10-12 hours after LH peak Withdrawal of endogenous progesterone results in endometrial breakdown and subsequent menstruation Average cycle length is 21-35 days
Normal Menstruation, Abnormal Menstruation, Menopausal Physiology and forsight of conception