basal joint reflex

basal joint reflex definition - medical

basal joint reflex

noun
A reflex of the thumb in which the metacarpophalangeal joint flexes and the interphalangeal joint extends in response to firm passive flexion of the third, fourth, or fifth finger. Also called finger-thumb reflex, Mayer's reflex.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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