somatic nervous system consists of nerve fibers that connect the cns to the
Somatic nervous system The somatic nervous system consists of afferent nerves or sensory nerves, and efferent nerves or motor nerves. Afferent nerves are responsible for relaying sensation from the body to the central nervous system; efferent nerves are responsible for sending out commands from the CNS to the body, stimulating muscle contraction; they include all the non-sensory neurons connected with skeletal muscles and skin. The a- of afferent and the e- of efferent correspond to the prefixes ad- (to, toward) and ex- (out of).
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Upper motor neuron Upper motor neurons travel in several neural pathways through the central nervous system (CNS):
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