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extrapyramidal system
Word Origin
noun
Anatomy
.
the part of the central nervous system, including the descending motor fibers other than those of the pyramidal tract, that regulates muscle tone, posture, and other aspects of body movement.
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Origin of
extrapyramidal system
First recorded in
1960–65
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
