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Musculoskeletal Anat

Forearm @ Elbow and Radioulnar joint muscles, origins, insertions, and actions

MuscleOriginInsertionAction
Bradioradialis Humerus Styloid process of radius Forearm flexion @ elbow
Triceps brachii *long head *lateral head *medial head Glenoid (infraglenoid tubercle - long head) Posterior shaft of humerus (lateral & medial head) Olecranon of ulna Arm extension @ shoulder (long) Forearm extension @ elbow
Supinator Lateral epicondyle of humerus Proximal shaft of radius Forearm/hand supination @ radioulnar joints
Pronator teres (located in anterior forearm) Medial epicondyle of humerus Lateral surface of midshaft of radius Forearm/hand pronation @ radioulnar joints
Pronator quadratus (located in anterior forearm) Distal ulna Distal radius Forearm/hand pronation @ radioulnar joints
Biceps brachii *long head *short head Glenoid (supraglenoid tubercle - long head) Coracoid process of scapula (short head) Radial tuberosity of radius Forearm flexion @ elbow Arm flexion @ shoulder (long head) Forearm/hand supination @ radioulnar joints
Brachialis Humerus Coronoid process of ulna Forearm flexion @ elbow
Created by: meganntaylor