3.13: Understand the Roles of Oestrogen and Testosterone in the Development of Secondary Sexual Characteristics

SECONDARY SEXUAL CHARACTERISTICS IN MALES:

FEMALE	EFFECTS OF OESTROGEN
	Development of breasts
	Growth of body hair
	Beginning of menstrual cycle

SECONDARY SEXUAL CHARACTERISTICS IN MALES:

MALE	EFFECTS OF TESTOSTERONE
	Growth of Penis and Testes
	Growth of facial and body air
	Muscle development
	Voice breaking
	Sex drive
	Sperm production