control movements

• synapse


  gap bet 2 neurones

  axon and dendrite terminals meet
• effector

  muscle
• voluntary movement


  stimulus detected by receptor cells

  carry impulse along sensory neurone to brain

  relay neurone in brain send impulses down to motor neurone to effector and cause a response
• reflex arc


  stimulus detected by receptor cells

  cause impulse carried by sensory neurone to

  spinal cord makes decision w/o brain thinking

  to effector + response