Hallmarks of the teen years, ages 1319: - PowerPoint PPT Presentation

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Hallmarks of the teen years, ages 1319:

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Girls develop breasts; boys develop hair on face, chest, voice deepens. Pubic hair appears ... mature pubic. hair. Growth spurt peak. GIRLS. BOYS. Adolescents' ... – PowerPoint PPT presentation

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Title: Hallmarks of the teen years, ages 1319:


1
What is Adolescence?
  • Hallmarks of the teen years, ages 13-19
  • Growth spurt
  • Rising hormonal levels (estrogen, progesterone,
    testosterone, androgen)
  • Menstruation and ejaculation begin
  • Girls develop breasts boys develop hair on face,
    chest, voice deepens.
  • Pubic hair appears
  • Reproduction becomes possible
  • Interest in dating and sex increase
  • Abstract and scientific thinking appear
  • Teens question Who am I? What will I do with
    my life?
  • Initiation rites include confirmation, bar
    mitzvah, and graduation.

2
Penis adult size mature pubic hair
Underarm, facial hair appearing voice deepening
Pubic hair appearing penis enlarging
Testes enlarging
First ejaculation
Age
8
9
10
11
12
13
14
15
16
17
18
4
Growth spurt peak
10
GIRLS
BOYS
3
8
6
2
Height increase in centimeters
Height increase in inches
4
1
2
Age
Mature pubic hair
Pubic hair appearing
Breast bud
First menstruation
Underarm hair appearing
Mature breast
3
Adolescents' Reactions to the Onset of Puberty
Time of Onset Early Late
Reaction Initial Later Initial Later
Male Positive Mixed Negative Positive
Female Negative Positive Positive Mixed
4
12 - 17 Years
18 - 25 Years
26 - 34 Years
35 Years and older
All Americans 12 Years and over
Percent of Teenagers Using Illegal Drugs
1978
1980
1982
1984
1986
1988
1990
1992
1994
1996
5
Summary of Adolescent Physical Development
  • Growth spurt proceeds in distal-to-proximal
    direction
  • Hormones increase and puberty occurs
  • Girls mature earlier, on average, than boys
  • High risk for injury and death
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