A system that controls all of the activities of the body.

The nervous system is made of:

The nervous system also allows you to react to a stimulus.

A stimulus is a change in the environment.

Example: A hot stove

Or… tripping over a rock

Your reactions are automatic.

Automatic means that you do not have to think about your

reactions. Example: If a bug flies by your

eye,

you will blink.

An organ that controls your emotions, your thoughts, and every movement you make.

The Central Nervous System is made of the brain and the spinal cord.

The Central Nervous System controls everything in the body.

The Outer Nervous System is made of the nerves and the sense organs.

Messages carried throughout the body by nerves.

You have a nerve along your whole arm.

The “funny bone” is the only place on the arm where the nerve is not protected.

The “funny bone” is on the elbow.

* The Central Nervous System controls all of the body’s activities.

* The Central Nervous System is made of two main organs.

1. The brain

2. The spinal cord