The biceps brachii during the radioulnar joint (forearm) supinating phase is a stronger elbow flexor. Passive range of motion is restored in the shoulder, elbow, forearm, and wrist joints. Injury may also occur from a distraction force applied to the volar forearm or wrist. The patient presents with pain over dorsal aspect of the forearm and wrist. It innervates most of the flexor muscles in the forearm and hand. This arm controls the forearm (magenta). The fingers have two long flexors, located on the underside of the forearm. Pain occurs, often radiating from the lateral forearm. It is due to excessive use of the muscles of the back of the forearm. Some handles have long arms extending across the length of the user's forearm. It terminates as the anterior cutaneous nerve of the forearm. It corresponds to the posterior interosseus nerve of the forearm. It runs distally on the anterior part of the forearm. A brace over the upper forearm may also be helpful. It is in the anterior compartment of the forearm.