pyramidal tractpyramidal tract
A major pathway of the central nervous system, originating in the sensorimotor areas of the cerebral cortex and generally descending through the brain stem to the spinal cord. The fibers of the pyramidal tract transmit motor impulses that control voluntary movement.
(plural pyramidal tracts)
- (anatomy) A major collection of axons that transmits nerve impulses from the motor cortex to the spinal cord