neurons

• what are the functions and structures of neurons?

  -specialised cells: move electrical impulses to and from the CNS

  -dendrites: receive signals from other neurons

  -axon: impulse carried throughout
• what is the function of the sensory neuron?

  • carries nerve impulses from sensory receptors to CNS
  • found in eyes, ears, tongue and skin
  • prompts appropriate reaction
  • to allow quicker reflexes
• role of the relay neuron

  • allow sensory and motor neurons to communicate
  • only in brain and spinal cord