nervous system

• CNS make decisions

  brain spinal cord
• neurone

  nerve cell
• dendron and axon


  part of neurone

  carry impulse to cell body-central part of nerve cell (dendron)

  carry impulse away (axon)
• myelin sheath


  fatty layer around axon and dendron insulate nerve cell

  prevent impulse from escaping

  speeds up impulses
• cell body


  centre of nerve cell

  has nuc
• impulse 


  ele message by neurone