Hormones 0.0 / 5 ? BiologyhormonesIGCSEEdexcel Created by: francescakgCreated on: 20-04-17 20:02 ADH SOURCE: Pituitary gland. ROLE: controls water content EFFECTS: increased permeability of kidney tubules to water. 1 of 7 ADRENELINE SOURCE: adrenal glands ROLE: 'fight for fight' response EFFECTS: increases heart rate, blood flow to muscles & blood sugar level 2 of 7 INSULIN SOURCE: pancreas ROLE: controls blood sugar level EFFECTS: stimulates liver to turn glucose into glycogen for storage 3 of 7 TESTOSTERONE SOURCE: testis ROLE: male sex hormone EFFECTS: promotes male secondary characteristics eg: voice deepens 4 of 7 PROGESTERONE SOURCE: ovaries ROLE: supports pregnancy EFFECTS: maintains uterus lining 5 of 7 OESTROGEN SOURCE: ovaries ROLE: female sex hormone EFFECTS: controls menstrual cycle & promotes secondary female sexual charcteristics eg: hips widen 6 of 7 NERVES Vs HORMONES NERVES = very fast. Acts for short time. Acts on precise area. HORMONES: very slow. Acts for long time. Acts in a general way 7 of 7
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