Definitions

The Nervous System: The Nervous System is a Your nervous system is the control and communication system of the body. Its job is to send and receive messages. Your nervous system controls all your thoughts and movements.

The Cranial nerves: The Cranial nerves go from the brain to the eyes, mouth, ears, and other parts of the human head.

The Peripheral nerves: The Peripheral nerves go from the spinal cord to your arms, hands, legs, and feet.

The Autonomic nerves: The Autonomic nerves go from the spinal cord to the lungs, heart, stomach, intestines, bladder and sex organs.

The Central nerves: The Central nerves are in the brain and spinal cord.

The Brain: The Brain is the command center of your entire body. The brain is the body's main information center. It is made of billions of neurons. The brain helps the body respond to the information it receives from the senses. The brain also processes thoughts. When you think, neurons in your brain are working.

The Spinal Cord: The spinal cord is a tube of neurons that runs up the spine and attaches to the brain stem. Information from nerves that branch out to the rest of the body goes to the spinal cord. Some messages are processed by the spinal cord but most information is sent on to the brain.

I hope these definitions help you understand these words better!