Comparing nervous to hormonal control

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  • Created by: Narya
  • Created on: 18-04-16 18:25

Nervous Control

  • electrical messages travel along neurones
  • chemical messages travel across synapses.
  • messages travel fast
  • messages usually have a rapid effect
  • usually a short-lived response
  • nerve impulses affect individual cells, e.g. muscle cells, so have a very localised effect
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Hormonal Control

  • chemical messages travel in the blood
  • messages are transported slightly more slowly in the blood- minutes rather than milliseconds
  • only chemical messages are involved
  • they often take longer to have an effect
  • effects are often widespread in the body, affecting any organ or tissue with the correct receptors
  • effects are often long lasting
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