menstrual cycle

Question 1

what is the function of the reproductive hormones during puberty?

Answer 1

testosterone
causes development of secondary sexual characteristics
oestrogen and controls sperm production
causes development of secondary sexual characteristics and maturation of eggs

Question 2

describe process of menstrual cycle?

Answer 2

uterus lining breaks down for 4 days
day 4-14, uterus lining builds back up, ready to receive an egg, and egg begins to mature
day 14, egg is released (ovulation) from ovaries and travels to uterus
day 28, is egg is fertilised, pregnancy may occur, if not cycle repeats

Question 3

name the 4 hormones involved in menstrual cycle in order?

Answer 3

FSH
oestrogen
LH
progesterone

Question 4

what does FSH do?

Answer 4

secreted by pituitary gland
causes egg to mature in a follicle in the ovaries
stimulates ovaries to produce oestrogen

Question 5

what does oestrogen do?

Answer 5

produced in ovaries as a result of fsh
causes lining of uterus to grow
stimulates release of LH and inhibits release of FSH

Question 6

what does LH do?

Answer 6

produced in pituitary gland as a result of oestrogen
stimulates ovulation / release of an egg

Question 7

what does progesterone do?

Answer 7

produced in ovaries by remains of follicle after ovulation
maintains uterus lining
inhibits production of FSH and LH