- 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. 2001.
pyramidal tract
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 — Anat. 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] * * * … Universalium
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
