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Muscles - Elbow
Muscles of the Elbow
| Term | Definition |
|---|---|
| biceps brachii | origin: short head from the coracoid process and long head from the supraglenoid tubercule |
| biceps brachii | insertion: tuberosity of radius |
| biceps brachii | action: flexion at shoulder and elbow; supination |
| brachialis | origin: anterior, distal surface of humerus |
| brachialis | insertion: tuberosity of ulna |
| brachialis | action: flexion at elbow |
| brachioradialis | origin: lateral epicondyle of humerus |
| brachioradialis | insertion: styloid process of radius |
| brachioradialis | action: flexion at elbow |
| triceps brachii | origin: superior, posterior, and lateral margins of humerus and the scapula |
| triceps brachii | insertion: olecranon of ulna |
| triceps brachii | action: extension at elbow |
| pronator quadratus | origin: medial surface of distal portion of ulna |
| pronator quadratus | insertion: anterior and lateral surface of distal portion of radius |
| pronator quadratus | action: pronation |
| supinator | origin: lateral epicondyle of humerus and ulna |
| supinator | insertion: anterior and lateral surface of radius distal to the radial tuberosity |
| supinator | action: supination |