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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 |