Homeostasis- Negative and positive feedback

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  • Created by: mitchell
  • Created on: 16-03-13 22:24
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  • Homeostasis- Negative and positive feedback
    • Homeostasis- Is the maintenance of the internal environment at a constant state  despite external changes
    • Negative feedback is the reversal of any change in conditions in order to maintain optimum conditions
    • Positive feedback is a process whereby any change detected by receptors is increased further away from optimum conditions. This does NOT lead to homeostasis
      • E.g. The dilation of the cervix at the end of pregnancy
  • Positive feedback is a process whereby any change detected by receptors is increased further away from optimum conditions. This does NOT lead to homeostasis
    • E.g. The dilation of the cervix at the end of pregnancy

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