development of secondary sexual characteristics

Question 1

what are secondary sexual characteristics?

Answer 1

the changes that occur during puberty as children become adolescents

Question 2

what are secondary sexual characteristics controlled by?

Answer 2

the release of hormones

Question 3

what hormone controls secondary sexual characteristics in females?

Answer 3

oestrogen

Question 4

what hormones control secondary sexual characteristics in males?

Answer 4

testosterone

Question 5

what are the effects of oestrogen on girls?

Answer 5

breasts develop
body hair grows- armpit and pubic hair
menstrual cycle begins
hips get wider
growth and development of genitalia
possible mood swings and acne

Question 6

what are the effects of testosterone on males?

Answer 6

voice breaks
testes start to produce sperm
muscles develop
shoulders broaden
voice breaks
facial, armpit, body and pubic hair growth
growth of penis and testes

Question 7

why do emotional changes also occur?

Answer 7

due to the increased levels of hormones in the body