Definitions for knee-jerk reflex
This page provides all possible meanings and translations of the word knee-jerk reflex
knee jerk, knee-jerk reflex, patellar reflex(noun)
a reflex extension of the leg resulting from a sharp tap on the patellar tendon
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"knee-jerk reflex." Definitions.net. STANDS4 LLC, 2015. Web. 8 Oct. 2015. <http://www.definitions.net/definition/knee-jerk reflex>.