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latissimus dorsi
inn. C6-C8
Extention, adduction of arm; medial rotation of arm; raises body toward arms.
axioappendicular muscle
axioappendicular muscle
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Levatator scapulae
inn. dorsal scapular, C3, C4
Elevates scapula, inferior rotation of scapula
axioappendicular muscle
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Rhomboids
Inn. Dorsal scapular
Retract scapula, inf. rotation of scapula, fix scapula to thor. wall
axioappendicular muscle
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Serratus anterior
inn. long thoracic
- Protract, rotate scapula
- Fix scapula to thor. wall
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Deltoid
inn. Axillary nerve
Action: flex arm, medially rotate arm, abduct arm, extend arm, laterally rotate arm
scapulohumeral muscles
axioappendicular muscle
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Teres major
inn. lower subscapular nerve
abducts arm, medially rotates arm
scapulohumeral muscles
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Subscapularis
inn. upper & lower subscapular nerve
- medially rotates arm
- holds humerus in place
musculotendinous/rotator cuff
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Supraspinatus
inn. suprascapular nerve
aids in abduction of arm, holds humerus in place
musculotendinous/rotator cuff
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Infraspinatus
inn. suprascapular nerve
laterally rotates arm, holds humerus in place
musculotendinous/rotator cuff
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Teres minor
inn. axillary nerve
laterally rotates arm, holds humerus in place
musculotendinous/rotator cuff
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