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  • Created by: daria2004
  • Created on: 23-12-19 22:20
define the term homeostasis
maintaining a constant internal environment
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how does sweat reduce the body temperature
when we sweat the water from our body evaporates so the heat energy escapes from our body into the environment
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How does the body remove excess carbon dioxide from the body?
By gas exchange in the lungs
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Where is the body's thermoregulatory centre?
In the brain
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What is vasodilation?
Arterioles become wider, increasing the flow of blood in the skin capillaries
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What is the approximate normal core temperature for the body?
37oC
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What type of feedback is involved in thermoregulation?
Negative feedback is involved in thermoregulation. As the body's temperature goes up, feedback mechanisms act to bring it back down again.
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How does insulin travel around the body?
in the bloodstream
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What effect does insulin have on blood glucose concentration?
It decreases the concentration of glucose
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What happens when blood sugar levels become too high?
When blood glucose levels rise, insulin is secreted from the pancreas. This causes the liver to convert glucose into glycogen, which reduces the blood glucose levels. Glucagon has the opposite effect.
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Card 2

Front

how does sweat reduce the body temperature

Back

when we sweat the water from our body evaporates so the heat energy escapes from our body into the environment

Card 3

Front

How does the body remove excess carbon dioxide from the body?

Back

Preview of the front of card 3

Card 4

Front

Where is the body's thermoregulatory centre?

Back

Preview of the front of card 4

Card 5

Front

What is vasodilation?

Back

Preview of the front of card 5
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