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upper motor neuron
A neuron within the cerebral cortex (motor cortex) contributing to the corticospinal tract or corticobulbar tract.
Not true motor neurons.
Distinguish from lower motor neurons (true motor neurons).
Pathology:
- lesions result in upper motor neuron signs
Related
lower motor neuron
upper motor neuron sign (pyramidal tract sign)
Specific
Betz cell
General
motor neuron
References
Stedman's Medical Dictionary 27th ed, Williams &
Wilkins, Baltimore, 1999