Changes in $GnRH$ pulse frequency in femail is controlled by circulating levels of
progesterone only
progesterone and inhibin
estrogen and progesterone
estrogen and inhibin.
In the human female, menstruation can be deferred by the administration of
Menstrual flow occurs due to lack of
Transformation of a young follicle into graafian follicle is controlled by
What role does pituitary gonadotropins play during follicular and ovulatory phases of menstrual cycle ? Explain the shifts in steroidal secretions.
About which day in a normal human menstrual cycle does rapid secretion of $LH$ (popularly called $LH$ surge) normally occurs?