Based on the scenario below, explain the specific role of the nerve fibers that carry the instructions from the central nervous system to the muscles.

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Efferent fibers are nerve fibers that transmit signals away from a central point, such as the central nervous system (CNS). In the somatic nervous system, motor neurons are classified as efferent fibers because they carry instructions from the CNS to the muscles to initiate movement. A helpful mnemonic to remember their function is that 'efferent' corresponds with 'exit,' signifying signals moving away from the CNS.

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