PubertyMales1. Hypothalamus - Pituitary gland - testosterone2. 12-16 years of age - more typical near 12 when sperm are first produced

Female1. Hypothalamus - Pituitary gland - estrogen2. 11-14 years of age - more typical 11

Puberty

Secondary Sexual Characteristics

Primary Vs Secondary Sexual Characteristics

Girls1. Deposition of fat in breasts, thighs, and buttocks2. The pelvic girdle broadens3. Skin softens4. Increase in bodily hair

Secondary:Boys1. longer heavier bones2. larger muscles3. Thicker skin4. Deeper voice5. Increased bodily hair6. Increased metabolism

Primary: growth and maturation of genitalia

Genital Development

Genital Development

What about hermaphrodite?1. Animal or plant; having both male female reproductive organs

2. A person born with both ovarian and testicular tissues and internal reproductive organs