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