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6 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Homeostasis |
The constant maintenance of our internal body conditions |
Maintenance |
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4 Body functions that need to be controlled |
Carbon dioxide Water and ion content Temperature Blood glucose levels |
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Controlling temperature |
For enzymes to work they have to be between: 41*c & 36*c Controlled by thermoregulation centre in brain |
Too high or low? |
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What happens if temperature is too high or low? |
If too high > blood vessels dilate then sweat glands release sweatIf too low > blood vessels constrict and muscles shiver |
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How is body water controlled? |
Too high > less ADH released by PG, less ADH reaches kidney, less water absorbed, more diluted urine produced Too low > more ADH released by PG, more ADH reaches kidneys, more water re-absored in kidneys, more concentrated urine produced |
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ADH |
The chemical that tells the kidneys how much water to conserve. |
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