Knee-jer reflex, also called patellar reflex, sudden kicking movement of the lower leg in response to a sharp tap on the patellar tendon, which lies just below the kneecap. ... In reaction these muscles contract, and the contraction tends to straighten the leg in a kicking motion.
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Knee-jer reflex, also called patellar reflex, sudden kicking movement of the lower leg in response to a sharp tap on the patellar tendon, which lies just below the kneecap. ... In reaction these muscles contract, and the contraction tends to straighten the leg in a kicking motion.
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