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Elbow muscles
OIA
Question | Answer |
---|---|
Biceps Brachii: Long Head | O: supraglenoid tubercle I: radial tuberosity; bicepital aponeurosis A: supination (primary), elbow flexion |
Biceps Brachii: Short Head | palm up O: coracoid process; upper lip of glenoid fossa I: radial tuberosity; bicepital aponeurosis A: supination and elbow flexion |
Brachialis | palm down O: distal half anterior humeral shaft I: coranoid process A: primary elbow flexor |
Brachioradialis | hammer curls O: supracondylar ridge I: styloid process A: elbow flexion |
Pronator Teres | Anterior O: medial condyloid ridge, medial proximal ulna I: middle 1/3 of lateral radius A: pronation |
Pronator Quadratus | Anterior O: distal ¼ of the anterior ulna I: distal ¼ of anterior radius A: pronation |
Triceps Brachii: Long Head | O: infraglenoid tubercle I: olecranon process A: elbow extension |
Triceps Brachii: Lateral Head | O: Superior half of the posterior humerus I: olecranon process A: elbow extension |
Triceps Brachii: Medial Head | O: distal 2/3 of posterior humerus I: olecranon process A: elbow extension |
Supinator | Posterior O: lateral epicondyle I: lateral, proximal radius A: supination |
Anconeus | O: posterior lateral condyle I: posterior, lateral olecranon process A: Elbow extension |