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9 Cards in this Set
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- Back
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What is the origin of the trapezius?
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External occipital protuberance, medial portion of superior nuchal line of the occiput, nuchal ligament, and spinous processes of C7-T12
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What is the insertion of the trapezius?
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Lateral 1/3 of the clavicle, acromion process, and spine of the scapula (horseshoe)
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What is the action of the trapezius?
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Upper fibers:
Bilaterally Extend the head & neck Unilaterally Laterally flex the head & neck Rotate the head & neck to opposite side Elevate the scapula Upwardly rotate the scapula Middle fibers: Adduct the scapula Stabilize the scapula Lower fibers: Depress the scapula Upwardly rotate the scapula |
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What is the origin of rhomboid major & minor?
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Major: Spinous processes T2-T5
Minor: Spinous processes C7-T1 |
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What is the insertion of rhomboid major & minor?
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Major: Medial border of the scapula between the spine of the scapula & inferior angle
Minor: Upper portion of medial border of the scapula, across from the spine of the scapula |
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What is the action of the rhomboid major & minor?
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Adduct the scapula
Elevate the scapula Downwardly rotate the scapula |
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What is the origin of the quadratus lumborum?
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Posterior iliac crest
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What is the insertion of the quadratus lumborum?
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Last rib & transverse processes of 1st-4th lumbar vertebrae
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What is the action of the quadratus lumborum?
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Unilaterally:
Laterally tilt the pelvis Laterally flex the vertebral column to the same side Assist to extend the vertebral column Bilaterally: Fix the last rib during inhalation & forced exhalation |
