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Related to lengthening reaction: chloropia
reflex elongation of extensor muscles that permits flexion of a limb.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
in the decerebrate animal, the rather sudden relaxation with lengthening of the extensor muscles when a limb is passively flexed; associated with clasp-knife spasticity.
Farlex Partner Medical Dictionary © Farlex 2012