pyramidal tract

pyramidal tract
any of four tracts of descending motor fibers that extend in pairs down each side of the spinal column and function in voluntary movement.
[1885-90]

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Universalium. 2010.

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Look at other dictionaries:

  • pyramidal tract — n CORTICOSPINAL TRACT * * * tractus pyramidalis …   Medical dictionary

  • pyramidal tract — noun 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 • Syn …   Useful english dictionary

  • pyramidal tract — pyram′idal tract n. anat. any of the bundles of motor fibers extending from the cerebral hemispheres into the medulla and spinal cord …   From formal English to slang

  • pyramidal tract — noun Date: circa 1889 any of four columns of motor fibers that run in pairs on each side of the spinal cord and are continuations of the pyramids of the medulla oblongata …   New Collegiate Dictionary

  • pyramidal tract — noun A major collection of axons that transmits nerve impulses from the motor cortex to the spinal cord …   Wiktionary

  • crossed pyramidal tract — n LATERAL CORTICOSPINAL TRACT …   Medical dictionary

  • direct pyramidal tract — n VENTRAL CORTICOSPINAL TRACT …   Medical dictionary

  • pyramidal tract anterior — tractus corticospinalis anterior …   Medical dictionary

  • pyramidal tract crossed — tractus corticospinalis lateralis …   Medical dictionary

  • pyramidal tract direct — tractus corticospinalis anterior …   Medical dictionary

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