female sex hormones

Question 1

GnRH is secreted by what part of the brain and stimulates release of what from anterior pituitary?

Answer 1

• FSH
• LH

Question 2

FSH initiates what?

Answer 2

• follicular growth

Question 3

LH stimulates what?

Answer 3

• further development of follicles

Question 4

FSH and LH stimulate ovarian follicles to secrete what?

Answer 4

• oestrogen

Question 5

progesterone is mainly secreted by what?

Answer 5

• corpus luteum

Question 6

progesterone and oestrogen prepare and maintain the endometrium ready for?

Answer 6

• implantation

Question 7

a normal cycle lasts for how long?

Answer 7

• 24-38 days

Question 8

bleeding should last how many days or less each cycle?

Answer 8

• 8 days or less

Question 9

what does ovarian cycle consist of?

Answer 9

• follicular phase, ovulation, luteal phase

Question 10

what does uterine cycle consist of?

Answer 10

• menstrual phase, proliferative phase, secretory phase

Question 11

menstrual phase roughly lasts how long?

Answer 11

• roughly first 5 days of cycle

Question 12

in ovaries under influence of FSH, primary follicles develop into

Answer 12

• secondary follicles
  -> this may take several cycles

Question 13

in uterus, fall in oestrogen and progesterone stimulates release of what hormone?

Answer 13

• prostaglandins - causing uterine spiral arterioles to constrict
• cells supplied by arterioles die and entire stratum functionalis of endometrium sloughs off leaving thin stratum basalis

Question 14

what is the layer of endometrium that sloughs off during menstrual phase?

Answer 14

• stratum functionalis
• leaving behind stratum basalis

Question 15

roughly how much blood is lost during menstrual phase?

Answer 15

• 5-80mls

Question 16

what is pre