menstrual cycle & fertility/treatments

Question 1

what hormone do the testes produce?
and function

Answer 1

testosterone
it stimulates the testes to produce sperm

Question 2

what hormone do the ovaries produce
and process through puberty

Answer 2

oestrogen
once puberty begins, eggs in ovaries start to mature and every 28 days an egg is released - (ovulation)

Question 3

what is ovulation

Answer 3

when the ovary releases an egg

this occurs every 28 days

Question 4

how does the uterus prepare before ovulation and what is the process

Answer 4

the uterus lining becomes thick and spongey

the egg now makes it’s way down to the uterus (if sperm is present egg cell is fertilised) - if egg is not fertilised egg and uterus lining is released

Question 5

function of follicle stimulating hormone (FSH)

Answer 5

causes an egg to mature in the ovary

Question 6

function of luteninising hormone (LH)

Answer 6

causes ovulation ( egg to be released)

Question 7

function of oestrogen and progesterone hormone

Answer 7

involved in maintaining the uterus lining - in case the egg is fertilised and implants

Question 8

stage 1 of menstrual cycle

Answer 8

FSH Is released by the pituitary gland
FSH travels in the blood to the ovaries where it causes an egg to mature - the FSH also triggers the ovaries to produce oestrogen - causing lining of uterus to become thick - also stops pituitary gland from releasing more FSH

Question 9

stage 2

Answer 9

the pituitary gland now releases LH, LH triggers ovulation (mature egg is released)

once the ovary releases egg, it produces progesterone

Question 10

what are 2 main effects of progesterone

Answer 10

1. stops pituitary gland from releasing LH and FSH - ( to prevent eggs being released / maturing )
2. keeps lining of uterus thick incase a fertilised egg implants

if fertilisation does not take place, levels of progesterone fall

Question 11

stage 3

Answer 11

the uterus lining and the egg are now released and woman has a period