| C2 |
Temporal pain, occipital headaches |
| C3 |
Pain at neck and trapezius |
| C4 |
Trapezius and lower neck pain, cape distribution of sensory loss |
| C5 |
Pain at lateral arm, neck and shoulder; loss of biceps reflex, loss of motor function in deltoid and elbow flexion |
| C6 |
Pain at posterior arm, neck, and thumb; loss of brachioradialis reflex, loss of motor function in biceps and wrist extension |
| C7 |
Pain at middle finger, loss of triceps reflex, loss of motor function in triceps and wrist flexion |
| C8 |
Pain in ring and pinky fingers, loss of motor control in finger flexors |
