Neurons

• Sensory neurons

  • It is found in the PNS in clusters known as ganglia
  • Send information from the senses(PNS) towards the brain(CNS)
  • Receptors found in eyes, ears, tongue, skin
  • Long dendrites and short axons
• Relay neuron

  • Found in the brain and the visual system
  • Carry nerve impulses between neurons allowing sensory and motor neurons to communicate
  • Involved in analysing the sensations from these neurons and deciding how to respond
  • Short dendrites and short axons, no myelin sheath
• Motor neurons

  • Location - cell bodies are found in the CNS but the long axons form part of the PNS
  • Send information via long axons from the brain/spinal cord (CNS) through to effectors such as muscles or glands
  • Short dendrites and long axon