<prompt> Root value of supinator jerk-C3 C4C4 C5C5 C6C8 T1  <response>: Ans. is c i.e., C5 C6 ReflexRoot valueBiceps reflex biceps jerkC5 C6Supinator reflex Supinator jerkC5 C6Triceps reflex Triceps jerkC7 C8Knee jerkL3 L4Ankle jerkS1 s2 