| Method |
Precise Learning Objective |
Linked |
Question / Activity
(Designed for maximum working out) |
Stepping Stones |
Pitstop Check
(Thinking Map) |
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Body temperature is monitored and controlled by the thermoregulatory centre in the brain. The thermoregulatory centre contains receptors sensitive to the temperature of the blood. |
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What controls body temperature and how does it do it? |
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The skin contains receptors which detect changes in temperature and send impulses to the brain. |
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What is the role of the skin in monitoring body temperature? |
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If the body temperature is too high, blood vessels dilate (vasodilation) and sweat is produced from the sweat glands. |
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What happens to the body when the core body temperature is too low? |
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Both these mechanisms cause a transfer of energy from the skin to the environment. |
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How do vasodilation and sweating help cool down the body? |
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If the body temperature is too low, blood vessels constrict (vasoconstriction), sweating stops and skeletal muscles contract (shiver). |
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What happens to the body when its core temperature is too low? |
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(HT only) Students should be able to explain how these mechanisms lower or raise body temperature in a given context. |
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(HT only) How does vasoconstriction help increase the body temperature? Group Practical:
Investigate the effect of sweating on the rate of cooling using a model - tubes of hot water wrapped in wet and dry paper towels.
Plot cooling curves and make conclusions. |
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