2. PUBERTY

3. PUBERTY can be defined as “the biological, social and emotional changes of adolescence”. It changes boys and girls from physical immaturity to biological maturity.

4. What makes puberty happen?
Pituitary Gland
releases
Sex
Hormones
acts on
SEX HORMONES = Growth hormone = acts on all body tissues EXCEPT testes and ovaries, GROWTH
testosterone – growth sprut, especially muscle development, sperm production
Oestrogen = development of breasts and female body shape
Primary and secondary
sex characteristics

5. PRIMARY SEX
CHARATERISTICS
are the sex glands/organs you are born with.
EXAMPLES:
* testes
* prostate gland
* ovaries
* uterus
SECONDARY SEX
CHARATERISTICS
are the things that develop at puberty that make you male/female.
EXAMPLES:
* pubic hair
* interest in boys/girls

6. Brain Storm
Brain storm some characteristics that occur during puberty in males and females

7. Physical changes also occur in:
GROWTH
* Legs & body trunk lengthen, bones harden, face & jaw widens
BODY COMPOSITION
*Girls – breasts, hips, more fat then muscle
* Boys – wider shoulders, lose fat and gain muscle, larger heart and lungs

8. OTHER physical changes in girls include:
Breast growth
Hips widen
Body hair growth (pubic, underarm, face, chest, back)
Fat deposits on hips
Uterus grows
Menstruation starts
Ovulation begins

9. PHYSICAL changes in boys include:
Voice deepens
Body hair (pubic, chest, back, face)
Penis & testes grow
Sperm production
Wet dreams
Sexual desires
Lots of other things too – scrotal sac grows, chest broadens, height increase, lots more muscle growth,
AND sexual desires isn’t just in boys

10. Puberty begins around – 10 – 12 for girls AND 12-14 for boys

11. AND finishes around years for girls and in some boys as late as years
These are just rough averages – everyone is different – usually growth that finishes last

12. SO, let’s at when these when these changes happen

13. Pubic hair Body grow Underarm hair Sweat glands GIRLS 10-12yrs
Breast grow
8-13
Pubic hair
8-14
Body grow
9-15
Menstruation
10-16
Underarm hair
2yrs after PH
Sweat glands
* u/arm air
BOYS 12-14yrs
Testes
10-13
Pubic hair
10-15
Body grow
10-16
Penis growth
11-14
Voice change
Facial hair
2yrs.
After PH

14. Along with all these physical changes comes social and emotional changes TOO
Will discuss these at another time