In vertebrates, the term motor neuron (or motoneuron) classically applies to neurons located in the central nervous system (or CNS) that project their axons outside the CNS and directly or indirectly control muscles. Motor neuron is often associated with efferent neuron, primary neuron, or alpha motor neurons.

For more information about Motor neuron, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.