1. Primary and secondary characteristics of Puberty
HEALTH

2. Recap on hormones Oestrogen Female Hormone Produced in the ovaries
Helps bring about the physical changes that turn a girl into a woman. This occurs during puberty.
Some changes that occur:
Growth of the breasts
Growth of pubic and underarm hair
Start of menstrual cycle

3. Testosterone Male Hormone
Brings out male physical changes that turn a boy into a man. Testosterone is created in the Testes.
Some changes that occur:
Growth of the penis and testes
Growth of facial, pubic and body hair
Deepening of the voice
Building of muscles and strong bones

5. PRIMARY AND SECONDARY SEX CHARACTERISTICS

7. Primary characteristics of puberty
Primary sex characteristics refer to changes to the sexual organs themselves (uterus, vagina, penis, and testes)
It involves both males and females.

8. Primary sex characteristics for males (boys)
Primary sex characteristic changes for boys include the enlargement of the testes, penis, prostate gland, and seminal vesicles.
These changes normally begin to occur between the ages of 9 and 14 years.
Their growth is generally completed between ages 12 and 16 years.

9. Primary sex characteristics for females (girls)
Some changes that occur to females include:
The budding stage of development (breast elevation) and the rounding of the hip begins
The uterus, vagina, labia and clitoris increase in size
Pubic hair growth becomes rapid and is slightly pigmented
Menarche occurs (first occurrence of menstruation)

10. Secondary characteristics
Secondary sexual characteristics are those that emerge during the prepubescent through post pubescent phases
They are visible changes such as:
Growth of hair
Change in body shapes for both males and females

11. Secondary sex characteristics in males
Growth of testicles
Growth of pubic hair
Chest becomes larger
Growth of armpit hair
Muscle growth
Voice becomes deeper

13. Secondary characteristics in females
Enlargement of breasts
Enlargement of uterus and vagina
Narrowing of shoulders
Widening of hips (for child bearing)
High pitched voice
Growth of pubic hair

15. Why do these changes occur?
So that the human body is capable of reproduction
If puberty did not occur we would not be able to have babies, which in turn means no human race!

16. Questions What is the male hormone called? -Testosterone
What is the female hormone called?
-Oestrogen
When do the primary changes usually occur?
- 9 to 14 years old
What are two features of secondary sex characteristics in males? Two for females?
- Body hair & change in body shapes
Why do these changes occur?
Preparing the body for reproduction