Homeostasis
Thermoregulatory centre – contains receptors that are sensitive to the temperature of the blood flowing through the brain.
Temperature receptors – detect the temperature of the body.
Effectors – produce a response.
Vasodilation – blood vessels supplying the skin dilate so more blood flows close to the surface when you are hot.
Vasoconstriction – blood vessels supplying skin capillaries constrict to close off the skin’s blood supply when you are cold.
Kidneys – clean the blood and take the waste products to make urine.
Anti-diuretic hormone – controls the concentration of urine.
Dialysis treatment – machines do the job of the kidneys.
Kidney transplant – healthy kidneys are usually transplanted from people who have died suddenly.
Also see The Human Nervous System, The Digestive System
Links for Learning
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Bitesize: Homeostasis
Revision World: Homeostasis
Bitesize: Kidneys in homeostasis
The Student Room: The Kidneys
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