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Efferent neuron
A nerve cell that carries signals away from your brain or spinal cord to your muscles or glands, telling them what to do. Think of it as the messenger that delivers instructions from headquarters to the workers.
Examples
When you decide to move your hand, efferent neurons send the message from your brain to the muscles in your arm.
Efferent neurons tell your sweat glands to produce sweat when you're hot.
If you touch a hot stove, efferent neurons help you pull your hand away quickly.