Reproductive hormones in humans

Question 1

where is oestrogen produced

Answer 1

ovaries

Question 2

where is testosterone produced

Answer 2

testes

Question 3

follicle stimulating hormone(FSH)
-released by
-function

Answer 3

-pituitary gland

-causes eggs to mature in ovaries
-stimulates ovaries to produce oestrogen

Question 4

luteinising hormone (LH)
-released by
-function

Answer 4

-pituitary gland

-stimulates ovulation

Question 5

define ovulation

Answer 5

the release of a mature egg from the ovaries

Question 6

which 2 hormones are released by ovaries

Answer 6

oestrogen, progesterone

Question 7

functions of oestrogen

Answer 7

-causes lining of uterus wall to thicken
-inhibits release of FSH
-stimulates release of LH

Question 8

functions of progesterone

Answer 8

-maintains thick uterus lining
-inhibits release of FSH and LH

Question 9

what hormone do hormonal contraceptions inhibit and why

Answer 9

FSH to prevent eggs maturing

Question 10

describe method of IVF

Answer 10

1. mother given FSH and LH to stimulate the maturation of several eggs
2. egges collected from mother and fertilised by sperm from father in laboratory
3. fertilised eggs develop into embryos
4. one or two embryos are inserted into mother’s uterus

Question 11

disadvantages of fertility treatment

Answer 11

-emotionally and physically stressful
-has a low success rate
-can lead to multiple births which are a risk to both the babies and the mother