Part 1. Torso Muscles Use your textbook to match the muscles of the torso below with their actions. Type 1. through 11. and put the letter associated with the muscle that matches the action next to the number. Your answer should be a list of numbers with a letter next to each number. Deltoid External oblique Internal oblique Pectoralis major Rectus abdominis Serratus anterior Transverse abdominus Erector spinae Latissimus dorsi Teres major Trapezius Action: 1. __ This muscle adducts and flexes the arm 2. __ The anterior portion of this muscle flexes the arm while the lateral portion abducts the arm. 3. __ This muscle abducts the scapula and rotates it upward (the boxer’s muscle). 4. __This muscle flexes the vertebral column and compresses the abdomen. 5. __ 6. __ The muscle pair that flexes the vertebral column, compresses the abdomen, and laterally flexes the vertebral column. 7. __This muscle only compresses the abdomen. 8. ___9. ___The two posterior trunk muscles that extend, adduct, and medially rotate the arm. 10. __ A muscle of the posterior trunk of which the superior portion elevates the scapula, the middle portion adducts the scapula, and the inferior portion depresses the scapula. 11. __ A posterior paired trunk muscle that extends the vertebral column, maintains erect posture, and laterally flexes the vertebral column. Part 2. Arm and Forearm Muscles
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