Root value of supinator jerk-
Ans. is 'c' i.e., C5 C6 ReflexRoot valueBiceps reflex (biceps jerk)C5 C6Supinator reflex (Supinator jerk)C5 C6Triceps reflex (Triceps jerk)C7 C8Knee jerkL3 L4Ankle jerkS1 s2
Nerves of Upper Extremity
C3 C4
C4 C5
C5 C6
C8 T1
C5 C6