Menstrual Cycle

Question 1

menarche

Answer 1

first menstruation

Question 2

menstrual cycle

Answer 2

occurs at an interval of 28-29 days. the cycle of events from one menstruation till the next one.

Question 3

1.Menstrual phase

Answer 3

3-5 days. breakdown of endometrium lining in the form of mucus and blood.

Question 4

2. follicular phase

Answer 4

regeneration of the endometrium and maturation of the primary follicle into the Graafian follicle. Induced by changes in the levels of LH and FSH(gonadotrophins).

Question 5

secretion of gondatrophins help in

Answer 5

stimulates follicular development and secretion of estrogens.

Question 6

when does LH and FSH reach peak level

Answer 6

middle of cycle(14th day)

Question 7

3.LH surge(Ovulatory phase)

Answer 7

rapid increase in LH secretion induces Graafian follicle rupture to release the ovum.

Question 8

4.Luteal phase

Answer 8

The remaining parts of the Graafian Follicle transform into the corpus luteum which secretes progesterone.

Question 9

what happens to the corpus luteum if no fertilization

Answer 9

degeneration of corpus luteum.