pyramidal tract

American  

noun

Anatomy.

1. any of four tracts of descending motor fibers that extend in pairs down each side of the spinal column and function in voluntary movement.

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Etymology

Origin of pyramidal tract

First recorded in 1885–90

Example Sentences

See Examples For:

pyramidal tract

They included portions of all the tracts, the pyramidal tract as well.

From Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. by Warfield, Louis Marshall

In the reflex, the lower center is aroused by a sensory nerve, and in the voluntary movement by the pyramidal tract.

From Psychology A Study Of Mental Life by Woodworth, Robert S.

In some so much of the pyramidal tract remains uncrossed that there may be decided weakness on the same side as the lesion in the brain.

From Psychotherapy by Walsh, James J. (James Joseph)

The lower center can be aroused in quite another way, and that is by nerve currents coming from the brain, by way of the motor area and the pyramidal tract.

From Psychology A Study Of Mental Life by Woodworth, Robert S.

The pyramidal tract is the more important clinically.

From Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. by Miles, Alexander