Category: Anatomy
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Anatomy: Upper Back
Muscles Attachements Nerve Supply Actions Special Tests Trapezius O: Medial 3rd of superior nuchal line, external occipital protuberance, nuchal ligament, spinous process of C7-T12 vertebraeI: Lateral third of clavicle, acromion, and spine of scapula Cranial Nerve 11C3 and C4 – Upper fibers: elevate shoulders-Middle fibers: retracts scapula – Lower fibers: rotates scapula downward Middle Trapezius…