Saturday, 23 February 2013

3.12 understand the roles of oestrogen and testosterone in the development of secondary sexual characteristics.

Secondary sexual characteristics develop during puberty

Oestrogen- females
The beginning of the menstrual cycle
Body mass increases and redistributed- to hips and breasts
Body hair- pubic
Voice deepens slowly
Development of sexual organs

Testosterone- males
Production of sperm
Growth of sexual organs
Body hair- pubic, arms and face
Body mass will increase, including muscle mass
Voice breaks (becomes deeper)
Development of a sexual drive

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