Upper limb skeletal muscle

"Upper limb skeletal muscle" refers collectively to all voluntary muscles located in the human upper extremity—including those in the shoulder girdle, arm (brachium), forearm (antebrachium), and hand. These muscles are responsible for a wide range of movements such as flexion, extension, abduction, adduction, rotation at various joints (shoulder, elbow, wrist), as well as fine motor skills involving fingers and thumb[1][2][4][5][6]. They include major groups like biceps brachii and triceps brachii in the arm; flexor and extensor groups in the forearm; rotator cuff muscles around the shoulder; thenar/hypothenar/lumbrical/interosseous muscles in the hand. Each individual muscle has its own specific origin/insertion points and innervation[1][2]. Collectively they play essential roles not only in gross movement but also stabilization during complex tasks. **Note:** "Upper limb skeletal muscle" is not a single molecule or receptor but rather an anatomical grouping comprising many different proteins/cell types. It is not considered a therapeutic target itself—though individual components within these muscles may be targets for drugs or research. Therefore this entry is **not appropriate** for molecular target databases focused on receptors/enzymes/transporters/etc., but may be relevant for anatomical reference or clinical context[1][2][4].

Other names

Upper extremity muscleArm muscleMuscles of the upper limbMuscles of the arm and forearm