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