pyramidal tract


  • WordNet 3.6
    • n pyramidal tract 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
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In literature:

The pyramidal tract is the more important clinically.
"Manual of Surgery Volume Second: Extremities--Head--Neck. Sixth Edition." by Alexander Miles
In the reflex, the lower center is aroused by a sensory nerve, and in the voluntary movement by the pyramidal tract.
"Psychology" by Robert S. Woodworth
The most anterior is the pyramid or motor tract, the decussation of which has been seen.
"Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 4" by Various
They included portions of all the tracts, the pyramidal tract as well.
"Arteriosclerosis and Hypertension:" by Louis Marshall Warfield
It seems to produce a sclerosis of the pyramidal tracts of the cord.
"New, Old, and Forgotten Remedies: Papers by Many Writers" by Various
The direct pyramidal tracts occur only in man and man-like apes.
"Being Well-Born" by Michael F. Guyer

In news:

Mammoth resort modeled after an Aztec pyramid with the just-opened Pearl, a super-luxe 310-room hotel-within-a-hotel-all in a covetable location on Acapulco's most exclusive tract of sand.

In science:

Fiber tracking from DTI using linear state space models: Detectability of the pyramidal tract.
Integral curves of noisy vector fields and statistical problems in diffusion tensor imaging: nonparametric kernel estimation and hypotheses testing