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9 Cards in this Set

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What is the origin of the trapezius?
External occipital protuberance, medial portion of superior nuchal line of the occiput, nuchal ligament, and spinous processes of C7-T12
What is the insertion of the trapezius?
Lateral 1/3 of the clavicle, acromion process, and spine of the scapula (horseshoe)
What is the action of the trapezius?
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
What is the origin of rhomboid major & minor?
Major: Spinous processes T2-T5

Minor: Spinous processes C7-T1
What is the insertion of rhomboid major & minor?
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
What is the action of the rhomboid major & minor?
Adduct the scapula
Elevate the scapula
Downwardly rotate the scapula
What is the origin of the quadratus lumborum?
Posterior iliac crest
What is the insertion of the quadratus lumborum?
Last rib & transverse processes of 1st-4th lumbar vertebrae
What is the action of the quadratus lumborum?
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