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1. (n.) pyramidal tract
any of the bundles of motor fibers extending from the cerebral hemispheres into the medulla and spinal cord.
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| Definition of 'pyramidal tract' |
Princeton's WordNet |
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1. (noun) pyramidal tract, pyramidal motor system, corticospinal tract
any of the important motor nerves on each side of the central nervous system that run from the sensorimotor areas of the cortex through the brainstem to motor neurons of the cranial nerve nuclei and the ventral root of the spinal cord
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