Reflexes

Reflex	Nerve root
Jaw jerk reflex	CN 5
Brachioradialis reflex/supinator	C5, C6
Biceps reflex	C5,C6
Triceps reflex	C7, C8
Knee/patellar reflex	L2, L3, L4
Ankle jerk reflex	S1, S2
Plantar	L5,S1