The _peripheral_ nervous system consists of thirty-one pairs of

_nerves_, with their end-organs, branching off from the cord, and twelve
pairs that have their roots in the brain
The _peripheral_ nervous system consists of thirty-one pairs of
_nerves_, with their end-organs, branching off from the cord, and twelve
pairs that have their roots in the brain. Branches of these forty-three
pairs of nerves reach to every part of the periphery of the body and to
all the internal organs.


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