Control and Coordination- Notes

 Nervous System

The nervous system is made up of the brain, spinal cord and a huge network of nerves that thread through our body.

The nervous system is responsible for sending, receiving and processing nerve impulses.

Neurons are the fundamental unit of the nervous system. The axons of the nervous bundle together to form nerve fibre that run throughout our body.

Nerves carry information in the form of electrochemical signals called impulses, which travel from the brain and spinal cord to the nerves located throughout the body.

Reflex action is an involuntary action by the body or an action by the body on which we do not have our control.