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Pyramidal Tracts


  • fasciculus pyramidalis
  • pyramidal tract
  • tractus pyramidalis


Nerve fibers which originate in the cerebral cortex, pass through the medullary pyramid, and terminate in the motor brain stem and spinal cord; mediate direct cortical control and initiation of skilled movements.

Definition from: CSP via Unified Medical Language SystemThis link leads to a site outside Genetics Home Reference. at the National Library of Medicine

See also Understanding Medical Terminology.

Published: November 23, 2015