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gamma loop

 

Definition: the reflex arc consisting of small anterior horn nerve cells and their small fibers that project to the intrafusal bundle produce its contraction, which initiates the afferent impulses that pass through the posterior root to the anterior horn cells, inducing, in turn, reflex contraction of the entire muscle.

Synonym(s): gamma motor neurons, gamma motor system, Granit loop

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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