The nerves in this system are outside of the brain and the spinal cord. They relay information between your brain and the rest of your body. “The electrical wires.”

This is the name for a nerve cell. They use electrical impulses and chemical signals to transmit information between different areas of the brain and the rest of the nervous system. “The whole nerve.”

Nerve cells that are activated by sensory input from the environment. Example: You burn your hand on a hot pan. “Information from the senses.”

A type of nerve cell that sends messages around your body so you can move.

They are points on a nerve cell that receive information (signals) from other nerve cells. “Tree branches.”

A cable-like structure that lets information travel through it away from the neuron to be received by other neurons. “The cable.”

A gap between two nerve cells. Information is transmitted from one nerve cell to another across this gap by chemical signals or by electrical signals. “The gap.”

A type of substance released by a nerve cell that allows information to by passed to another nerve cell. “The information substance.”