The
Nervous system is
composed of the central nervous system which includes the brain and spinal
cord, the peripheral nervous systemconsisting of the nerves given off from
brain and cord and the autonomic nervous system. The central and peripheral
systems are often grouped together and described as the cerebrospinal nervous
system. The autonomic nervous system includes the sympathetic and
parasympathetic nerves. It is also described as the involuntary nervous system.
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