B7 - The Nervous System

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  • Created by: lilyhw
  • Created on: 18-12-19 14:14

 

How do we sense the world around us?

  • Ears -  receptors sensetive to changes in position for balancxe/ receptors sensetive to sound
  • Eyes - receptors sensetive to light
  • Nose & tounge - receptors sensetive to chemicals for smell and taste
  • Skin - receptors sensetive to touch, pressure, pain and temperature change.

Reflex Arc

Stimulus --> receptor --> co-ordinator (CNS) --> effector (always a muscle/gland) --> response

How do neourones connect

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