What role does pituitary gonadotropins play during follicular and ovulatory phases of menstrual cycle ? Explain the shifts in steroidal secretions.
The secretion of gonadotropins ($LH$ and $FSH$) increases gradually during the follicular phase and stimulates follicular development as well as secretion of estrogens by the growing follicles.
In the middle of cycle (about $14^{\text {th }}$ day) both $LH$ and $FSH$ attain a peak level.
Correct hormonal sequence in the increase of menstruation is
Ovulation takes place in/on
The substance secreted by the corpus luteum is
In the $28$ day human ovarian cycle, the ovulation takes place typically on
Corpus luteum is the source of secretion of