Relacionar Columnas Muscle Actions Part OneVersión en línea muscles por Dr. David Myers 1 levator scapulae 2 pectoralis major 3 triceps brachii 4 sternocleidomastoid 5 flexor carpi radialis and ulnaris 6 deltoid 7 trapezius 8 biceps brachii 9 latissimus dorsi 10 rectus abdominis extends elbow elbow flexion, forearm supination. flexes waist and compresses abdominal viscera rotates head left and right. bilaterally draws head forward and down. flexes, adducts, and medially rotates humerus extends and laterally flexes the neck. adducts and medially rotates humerus, extends the shoulder joint ant. fibers flex and medially rotate arm, lat. fibers abduct the arm, post. fibers extend and laterally rotate the arm elevates scapula if cervical vertebrae are fixed., flexes neck laterally when scapula is fixed. flexes wrist anteriorly
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