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- Dictionarymotor neuron/ˌməʊtə ˈnjʊərɒn/
noun
- 1. a nerve cell forming part of a pathway along which impulses pass from the brain or spinal cord to a muscle or gland.
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noun
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A motor neuron (or motoneuron or efferent neuron) is a neuron whose cell body is located in the motor cortex, brainstem or the spinal cord, and whose axon (fiber) projects to the spinal cord or outside of the spinal cord to directly or indirectly control effector organs, mainly muscles and glands. There are two types of motor neuron – upper motor neurons and lower motor neurons. Wikipedia