Radial Nerve Anatomy Diagram

Radial nerve injury symptoms include weakness or inability to extend the wrist and fingers (wrist drop), numbness, tingling, and loss of sensation in the dorsal hand and posterior forearm.

The radial nerve provides sensory innervation to the dorsal surface of the lateral three-and-a-half fingers.

Treatment includes rest, splinting, physical therapy, anti-inflammatory medications, and in severe cases, surgical intervention to relieve nerve compression or repair nerve damage.