The nervous system is the body tissue that records and distributes information in the body using electrical and chemical transmission. It has two parts. The "central" nervous system is comprised of the brain and spinal cord. The "peripheral" nervous system is the nerve tissue that transmits sensation and motor information back and forth from the body to the central nervous system.
NERVOUS SYSTEM
Meaning of NERVOUS SYSTEM in English
English dictionary of medicine. Английский словарь медицины. 2012