The Nervous System

The cranial nervous system

- The cranial nerves are the nerves that connect the brain, the eyes, the ears, the mouth and other parts of the head.

The central nervous system

- The central nervous system is the intergration and command center of the body. it consists of the brain, spinal cord and retina.

Peripheral nervous system

- This system consists of sensory neurons, ganglia (clusters of neurons), and nerves that connect the cenrtal nervous system to the arm, hands, legs and feet.

Autonomic nervous system

- These are the nerves that connect the central nervous system to the heart, lungs, stomach, intestines, sex organs and bladder.