Question

a 52-year-old office worker presents with neck pain radiating to the right arm, described as sharp and burning, particularly affecting the middle finger. the pain worsens when tilting the head to the right. which nerve root is most likely affected?
○ c5
○ c6
○ c7
○ c8

Explanation:

Cervical nerve roots have specific dermatomal distributions. C7 innervates the middle finger, and pain radiating to this finger, worsened by ipsilateral head tilt, points to C7 nerve root involvement. C5 affects the upper arm/lateral forearm, C6 affects the thumb/index finger, and C8 affects the ring/small finger.

Answer:

C. C7