<prompt> Root value of supinator jerk -C3C4C4C5C5C6C8T1  <response>: Ans. is c i.e., C5 C6ReflexRoot valueBiceps reflex biceps jerkC5C6Supinator reflex Supinator jerkC5 C6Triceps reflex Triceps jerkC7C8Knee jerkL3L4Ankle jerkS1S2 