Brachial Plexus Injury
The brachial plexus is a group of nerves that come from the spinal cord in the neck and travel down the arm (see Figure 1). These nerves control the muscles of the shoulder, elbow, wrist and hand, as well as provide feeling in the arm. Some brachial plexus injuries are minor and will completely recover in several weeks. Other injuries are severe enough and could cause some permanent disability in the arm.