Which of the following hormonal activity is expected immediately prior to Ovulation?
LH surge
FSH surge
Progestrone surge
Estrogen surge
Ovulation occurs due to the effect of increased concentration of LH. In the pre-ovulatory phase of the menstrual cycle, the ovarian follicle will undergo a series of transformations called cumulus expansion, which is stimulated by FSH. This is followed by LH surge.