Definition of central nervous system:
The central nervous system refers to the brain, spinal cord, and spinal nerves. These serve as the main "processing center" for the whole nervous system, and thus control all the workings of the body.
The central nervous system does not include the peripheral nerves in the arms, legs, muscles, and organs.
As the most complex system, the central nervous system serves as the body control center and communications electrical-chemical wiring network. As a key homeostatic regulatory and coordinating system, it detects, interprets, and responds to changes in internal and external conditions. The central nervous system integrates countless bits of information and generates appropriate reactions by sending electrochemical impulses through nerves to effector organs such as muscles and glands. The brain and spinal cord are the central nervous system (CNS); the connecting nerve processes to effectors and receptors serve as the peripheral nervous system (PNS). Special sense receptors provide for taste, smell, sight, hearing, and balance. Nerves carry all messages exchanged between the CNS and the rest of the body.
Central Nervous System
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