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Stack #61642 Week 3

Stack #61642- Mass 292 week 3

muscleorigininsertionactionnerve
Rhomboids major: spines of T2-T5 vertebrae; Minor: C7 and T1-T5 vertebral border of scapula inferior and superior to spine elevates and adducts scapula, rotates it downward, stabilizes scapula (EARS) dorsal scapular
Trapezius superior nuchal line of occipital bone, ligamentum nuchae, and spines of C7 and T1-T12 clavicle and acromion and spine of scapula superior fibers elevate scapula, can help extend head, middle fibers adduct scapula; inferior fibers depress scapula; superior and inferior fibers together rotate scapula UPWARD, stabilizes scapula Accessory (XI) nerve and cervical spinal nerves C3-C5
Quadratus Lumborum iliac crest and iliolumbar ligament inferior border of rib 12 and first 4 lumbar vertebrae acting together, pull twelfth ribs inferiorly during forced exhalation; fix twelfth ribs to prevent their elevation during deep inhalation, and help extend lumbar portion of spine; acting singly, laterally flex spine, expecially lumbar portion thoracic spinal nerve T12, and lumbar spinal nerves L1-L3 or L4
Latissimus Dorsi spines of inferior 6 thoracic vertebrae, lumbar vertebrae, crests of sacrum and ilium, inferior 4 ribs intertubercular sulcus of humerus extends, adducts, and medially rotates arm at shoulder, draws arm inferiorly and posteriorly thoracodorsal
Levator scapula superior 4 or 5 cervical vertebrae (C1-C5) superior vertebral border of scapula elevates scapula and rotates it downward dorsal scapular and cervical spinal nerves C3-C5
Created by: sandy