Controlling your body temperature

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  • Created by: ryan
  • Created on: 13-01-13 18:13
How does the body gain heat in cold conditions?
Respiration in cells releases some energy as heat, shivering generates heat, less blood flows near skin surface (vasoconstriction), exercise generates heat because muscles need to respire more to contract, wearing more clothes insulates the body.
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How does the body lose heat in hot conditions?
More blood flows near the skins surface to give off heat (Vasodilation), more sweating the water evaporates taking heat from the skin, wearing fewer clothes.
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What is the core temperature for humans?
37 degrees C
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What is homeostasis?
Homeostasis is the maintaining of a constant internal environment.
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What is negative feedback?
Negative feed back is a mechanism that keeps things at a steady level.
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Other cards in this set

Card 2

Front

How does the body lose heat in hot conditions?

Back

More blood flows near the skins surface to give off heat (Vasodilation), more sweating the water evaporates taking heat from the skin, wearing fewer clothes.

Card 3

Front

What is the core temperature for humans?

Back

Preview of the front of card 3

Card 4

Front

What is homeostasis?

Back

Preview of the front of card 4

Card 5

Front

What is negative feedback?

Back

Preview of the front of card 5

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