This consists of CNS ( Central Nervous System ) and PNS ( Peripheral Nervous System.)
The CNS has the spinal cord and the brain.
The peripheral PNS consists of the nerve branching of the Central Nervous System :
The nervous system is the body's chief communication system. It regulates many internal functions and also coordinates the activities, we know collectively as human behavior.
The phenomenon of feelings / emotions which are attributed to the mind are believed to be related to the integrated activities of the nerve cells.
The information from the external environment is carried from the sensory organs via the afferent nerves to the Central Nervous System, which interprets the information and sends it back to the source via the efferent nerves.
Disease pertaining to the nervous system include many neural disorder caused internally and externally ( by trauma etc. ).
Multiple sclerosis, Parkinson's disease, Paralysis, Alzheimer's disease etc.