Median nerve injury

The Median nerve arises in the axilla from the medial and lateral cords (C5, C6, C7, C8, and T1). It supplies the muscles. It runs down in front of the elbow and supplies muscular branches in the forearm and enters the palm. Its main sensory supply is to thumb, index and middle fingers. The median nerve can be injured at the following levels.

Elbow level at the level of the wrist in the carpal tunnel.