chaddock sign

Medical Dictionary

Chaddock sign Chad·dock sign (chād'ək)
Extension of the big toe in response to irritation of the skin covering the malleolus of the ankle joint, observed in organic disease of the corticospinal reflex paths. Also called Chaddock reflex.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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