B5: HORMONES IN HUMAN REPRODUCTION

Question 1

What are the hormones in human reproduction?

Answer 1

-oestrogen
-testosterone

Question 2

What are the female secondary sexual characteristics due to oestrogen?

Answer 2

-menstruation starts
-eggs begin to mature and ovulation occurs
-breasts develop
-breasts widen
-pubic hair growth
-sexual organs develop

Question 3

What are the male secondary sexual characteristics due to testosterone?

Answer 3

-stimulates sperm production
-sexual organs grow and develop
-body becomes more muscular
-voice breaks
-hair growth

Question 4

What does FSH do?

Answer 4

causes egg to mature in ovary

Question 5

What does oestrogen do?

Answer 5

repairs and thickens uterus lining

Question 6

What does LH do?

Answer 6

triggers ovulation

Question 7

What does progesterone do?

Answer 7

maintains uterus lining

Question 8

The menstrual cycle (interaction of hormones)

Answer 8

-FSH (produced by pituitary gland) causes egg to mature and stimulates ovaries to releases oestrogen
-oestrogen (produced by ovaries) inhibits FSH, thickens uterus lining and stimulates pituitary gland to release LH
-LH (produced by pituitary gland) triggers ovulation
-progesterone ( produced by follicle released by ovaries) maintains lining of uterus