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corticospinal tract |
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Corticospinal tract A tract of nerve cells that carries motor commands from the brain to the spinal cord. Mentioned in: Neurologic Exam corticospinal tract, any of two groups of nerve fibers (the anterior corticospinal tract and lateral corticospinal tract ) that originate in the cerebral cortex and run through the spinal cord. They are responsible for carrying motor fibers. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Invoking corticospinal pathways may require adequate motivation and attention, which RM may only have had periodically due to damage to the raphe nuclei and the locus coeruleus, which give rise to extremely widespread ascending and descending projections that terminate in structures throughout the central nervous system. |
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