2.77 understand the sources, roles and effects of the following hormones: ADH, adrenaline, insulin, testosterone, progesterone and oestrogen

Hormone	Source	Role	Effects
ADH	Pituitary Gland (in the brain)	Controls water content	Increases the permeability
Adrenaline	Adrenal Glands (on top of the kidneys)	Readies the body for ‘fight or flight’	Increases heart rate, blood sugar levels and blood flow to muscles
Insulin	Pancreas	Helps control the blood sugar level	Stimulates the liver to turn glucose into glycogen for storage
Testosterone	Testes	Main male sex hormone	male secondary sexual characteristics, e.g facial hair
Oestrogen	Ovaries	Main female sex hormone	Controls the menstrual cycle and female secondary sexual characteristics e.g widening of hips