| knee-jerk reflex |
knee jerk: a reflex extension of the leg resulting from a sharp tap on the patellar tendon
출처: wordnet.princeton.edu/perl/webwn
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| knee-jerk reflex |
a test for a reflexive extension of the leg to check the functioning of the nervous system; tapping the knee just below the kneecap should cause the lower part of the leg to jerk upward
출처: www.american-depot.com/services/resources_gl_k.asp
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