Question
Biology Question on human reproduction
Which one of the following is the correct matching of the events occurring during menstrual cycle?
Proliferative phase : Rapid regeneration of myometrium and maturation of Graafian follicle
Secretory phase : Development of corpus luteum and increased secretion of progesterone
Menstruation : Breakdown of myometrium and ovum not fertilised
Ovulation : LH and FSH attain peak level and sharp fall in the secretion of progesterone
Secretory phase : Development of corpus luteum and increased secretion of progesterone
Solution
Secretory phase is also called as luteal phase. 316 The luteinising hormone or LH is secreted by the anterior lobe of pituitary gland. LH causes ovulation. LH stimulates cells of ovarian follicles to develop corpus luteum. Corpus luteum secretes large amount of progesterone.