Which neurons carry information from the central nervous system to the muscles?

• A. Sensory (afferent) neurons
• B. Motor (efferent) neurons
• C. Interneurons
• D. Glial cells

Answer: (B)

Motor (efferent) neurons carry signals from the central nervous system to the muscles. They originate in the CNS and extend their axons to skeletal muscles, where they trigger contraction by releasing neurotransmitters at the neuromuscular junction. This direction of flow—away from the CNS—defines efferent pathways. In contrast, sensory (afferent) neurons bring information from the body to the CNS, interneurons connect neurons within the CNS to process information, and glial cells provide support but do not transmit motor commands.