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