A chart of human nerves, called the nervous system, is located at LiveScience.com. The chart shows the subsystems of the human nervous system and briefly describes the purpose of each.
The four main parts of the human nervous system are the central, peripheral, cranial and autonomic nervous systems. The central nervous system consists of the brain and spinal cord and serves to integrate and control the entire body. The autonomic nervous system connects the central nervous system to vital organs, such as the heart, lungs and intestines. The peripheral nervous system connects the central nervous system to the arms, legs, hands and feet. The cranial nervous system connects the brain to all the organs in and on the head, such as the eyes, ears, nose and mouth.