Why should we appreciate our nervous system? Read these 11 fun facts and you’ll know why: 1. The body has billions of nerve cells Every person’s body contains billions of nerve cells (neurons).

These move towards the central nervous system (CNS). The CNS is the brain and spinal cord. It coordinates the responses. Messages are then sent back along different neurones to muscles which ...

The nervous system allows us to react to our surroundings and coordinate our behaviour. The conditions inside our body must be carefully controlled if the body is to function effectively.