The central nervous system
The central nervous system is made up of the brain and spinal cord.
And the peripheral nervous system is made up of nerves and receptors.
The CNS is made up of neurones that coordinate the massages travelling through the nervous system.
The three types of cells, neurons are:
- The sensory neurone: Transmit impulses inwards from sense organs to the CNS
- Motor neurone: Transmitting impulses from the CNS to muscles and glands elsewhere in the body
- Relay neurone: Transmit the electrical impulses generated by the stimuli to other nerves.