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Process of sexual maturation, when completed boys and girls are fertile.

Process beginning

When the PITUITARY GLAND is stimulated by the maturing HYPOTHALAMUS to produce hormones. Stimulating other endocrine glands to produce hormones

Glands in males


Glands in females


Masculinizing hormones

androgens= testogerone

Feminizing hormones


Primary sexual characteristics

directly involved in sex, genitalia

Secondary sexual characteristics

breasts, males deep voices


girls first menstruation


Boys first ejaculation

Timing of puberty?


environmental factors

higher fat=sooner to start
correlate with mothers
average age 13

sooner in families with high conflict/stress

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