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

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