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4 Cards in this Set
- Front
- Back
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Subclavius |
Origin: first rib Insertion: clavicle Action: depresses clavicle |
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Serratus anterior |
Origin: Superior eight or nine ribs Insertion: vertebral border and inferior angle of scapula Action: rotates scapula superiorly and laterally, abducts scapula, elevates ribs when scapula is fixed |
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Trapezius |
Origin: occipital Bone, ligamentum nuchae and Spine of seventh cervical and all thoracic vertebra Insertion: clavicle and acromion and spine of scapula Action: elevates clavicle, abducts scapul, rotates scapula, superiorly elevates or depresses scapula and extends head |
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Pectoralis minor |
Origin: Central Services of ribs 3 through 5 Insertion: coracoid process of scapula Action: depresses and protracts shoulder, rotates scapula so the glenoid cavity moves inferiorly, elevates ribs if scapula is stationary |
