outcome 2 Flashcards
puberty
the time signifying the end of childhood and during which significant changes to the way an individual’s body structure and functions occur in terms of skeletal and sexual maturation
primary sexual characteristic
characteristics that develop during puberty related to the development of the sex organs and reproductive system of males and females, enabling them to reproduce
secondary sexual characteristics
characteristics that develop during puberty that indicate sexual maturity but are not related to the person’s ability to reproduce
examples of male primary sex characteristic
enlargement of the testes, thinning and reddening of the scrotum, penis growth in length and thickness, vas deferens develops, prostate glands begin to generate fluid
examples of female primary sex characteristic
menstrual cycle; vagina, uterus and fallopian tubes mature
examples of male secondary sex characteristic
voice break and deepen, facial and body (underarm & pubic) hair, more muscular
examples of female secondary sex characteristic
breast development, widening of hips and thighs, pubic and underarm hair
growth spurt in females
age 10-13. gain 16kg and 16cm
growth spurt in males
age 12-15. gain 20kg and 20cm
hormone
a chemical substance produced by the body that acts to regulate and control a wide range of body processes, including physical growth and development
growth hormone (GH) function, gland released from and sit acts on
controls growth, stimulates growth of muscles, organs and cells
pituitary gland
all cells of the body
follicle stimulating hormone (FSH) function, gland released from and sit acts on
males: stimulates production of sperm in testes; females: stimulates ovum (egg) maturation in ovaries
pituitary gland
gonads
luteinising hormone (LH) function, gland released from and sit acts on
males: stimulates production of testosterone; females: increase in this hormone causes ovulation (release of ovum from ovary)
pituitary gland
gonads
testosterone function, gland released from and sit acts on
males: stimulates sperm production and is responsible for the development of secondary sex characteristics
testes
testes; changes in body during puberty
oestrogen function, gland released from and sit acts on
females: responsible for the development of secondary sex characteristics; also plays a role in the menstrual cycle
ovaries
menstrual cycle; changes in body during puberty