menstrual cycle

Question 1

What are the phase of the menstrual cycle?

Answer 1

1) Menses - first five days
2) proliferative phase or follicular (ovary)
3) Ovulation
4) Luteal (ovary) or secretory phase

Question 2

describe the menses stage of menstruation

Answer 2

Menses

First five days is the menstrual flow

Question 3

What causes menstrual flow?

Answer 3

estrogene and progesterone withdrawal causes vasoconstriction causing the uterual lining to disintegrate and slough away

Question 4

describe the follicular (ovary) or proliferative phase of menstruation.

Answer 4

FSH stimulates the maturation of the follicle which secretes estrogen. estrogen cause the uterine lining to thicken (proliferate)

Question 5

Describe ovulation in the menstrual cycle?

Answer 5

at 14 days high concentration of estrogen is followed by LH surge which stimulates ovulation

Question 6

Describe the Luteal phase of menstruation cycle

Answer 6

Also called the secretory phase. the follicular cell disintegrates into the corpus luteum. which secretes progesterone and estrogen

Question 7

what does progesterone affect in the luteal cycle?

Answer 7

Progesterone cause the uterine lining to become more vascular and glandular. this is the cause of the body temp rising immediately after ovulation

Question 8

What doe estrogen affect in the luteal phase?

Answer 8

It further stimulates uterine wall development and along with progesterone inhibits the secretion of LH and FSH

Question 9

What happens if the egg is fertilized?

Answer 9

The embryo woulD produce hCG hormone which wouls stimulate the corpus luteum to continue to produce estrogen and progesterone.

Question 10

What happens if the egg isnt fertilized?

Answer 10

The corpus luteum would disintergrate and estrogen and progesterone would withdraw. the cycle would restart.