Actions of Muscles of Anterior Shoulder and Arm Match the action with the muscles of the anterior shoulder and arm. Rotates arm medially Abducts, extends, and flexes the arm Rotates arm laterally Flexes forearm at elbow; supinates Extends forearm at elbow Flexes forearm at elbow Rotates, retracts, elevates, and depresses scapula
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Rotates arm medially -Muscles of the anterior shoulder and arm: rotates arm medially. Show more…
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PART C: Assessments Match the muscles in column A with the actions in column B. Place the letter of your choice in the space provided. Column A a. Brachialis b. Coracobrachialis c. Deltoid d. Extensor carpi ulnaris e. Flexor carpi ulnaris f. Infraspinatus g. Pectoralis major h. Pectoralis minor i. Rhomboid major j. Serratus anterior k. Teres major l. Triceps brachii Column B 1. Abducts, extends, and flexes arm 2. Pulls arm anteriorly (flexion) and across chest (adduction) and rotates arm medially 3. Flexes wrist and adducts hand 4. Raises and adducts (retracts) scapula 5. Raises ribs in forceful inhalation or pulls scapula forward and downward 6. Used to thrust shoulder anteriorly (protraction), as when pushing something 7. Flexes the forearm at the elbow 8. Flexes and adducts arm at the shoulder along with pectoralis major 9. Extends the forearm at the elbow 10. Extends, adducts, and rotates arm medially 11. Extends and adducts hand at the wrist 12. Rotates arm laterally
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FOREARM EXTENSOR Muscle Origin Insertion Action UNIT 4: MUSCLES THAT ACT ON THE FOREARM, WRIST, AND FINGERS A. Click on each muscle and watch the flix. In addition view the muscle groups in the following A and P Flix: Group Muscle Actions and Joints: • Muscles of the Forearm (a), (b), and (c) SUPINATION/PRONATION OF FOREARM Muscle Origin Insertion Action Pronator teres Medial epicondyle of humerus and coronoid of ulna Midshaft of lateral radius Supinator Lateral epicondyle of humerus; proximal ulna Proximal end of radius Pronator quadratus Distal portion of anterior ulnar shaft Distal surface of anterior radius
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