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Lab 10: Muscles that Move the Arm

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1/5

  • Latissimus Dorsi

    C & H

    Origin: ilium, lower 4 ribs, & thoracic & lumbar vertebrae

    Insertion: humerus

    Action: adducts, extends, & medially rotates humerus

  • Deltoid

    C & H

    Origin: clavicle & scapula

    Insertion: humerus

    Action: abducts, flexes, and medially rotates humerus

  • Teres Major

    C & H

    Origin: scapula

    Insertion: humerus

    Action: adducts, extends and medially rotates humerus

  • Pectoralis Major

    H

    Origin: clavicle, sternum, & ribs 1-6

    Insertion: humerus

    Action: adducts, flexes and medially rotates humerus

  • Coracobrachialis

    H

    Origin: scapula

    Insertion: humerus

    Action: adducts & flexes humerus