Hormonal contraception

Question 1

Tell me about FSH

Answer 1

secreted by anterior pituitary
stimulates ovarian follicle development
peaks at ovulation
increased number of follicles increases the amount of oestrogen

Question 2

Tell me about LH

Answer 2

Secreted by the anterior pituitary
massive peak stimulates ovulation
stimulates production of corpus luteum which increases progesterone levels

Question 3

The menstrual phase is day 1-5 what happens during this time?

Answer 3

Levels of progesterone are low causing the shedding of the endometrium - menstruation

Question 4

the Proliferative phase is day 6-14 what happens during this time?

Answer 4

increasing oestrogen causes proliferation of the functional layer of the endometrium

Question 5

The secretory phase is day 15 - 28 , what happens during this time?

Answer 5

progesterone causes the endometrial glands to develop and start secreting glycogen

Question 6

How does synthetic oestrogen provide contraception?

Answer 6

slightly raised levels of oestrogen inhibit FSH and LH
Inhibition of FSH -prevents ovarian follicle development
inhibition of LH - prevents ovulation

Question 7

How does synthetic progesterone provide contraception

Answer 7

high levels of pregesterone inhibit LH

thickens cervical mucous