God designed body reflexes according to a nursery rhyme: One, two— buckle my shoe. Three, four— kick the door. Five, six— pick up sticks. Seven, eight— shut the gate. S1,2 = ankle jerk L3,4 = knee jerk C5,6 = biceps ...
“1,2,3,4,5,6,7,8“: S1–2: ankle L3–4: knee C5–6: biceps, supinator C7–8: triceps ...