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MuscleOriginInsertionNerveAction
Muscles of the shoulder and scapula
deltoideusouter two thirds spina scapulae, acromion, the outer end of clavicletuberositas deltoidea humerin. axillaris (C5-C6)Shoulder joint: ventral and dorsal flexion, abduction, auxiliary external and internal rotation
supraspinatusfossa supraspinatatuberculum majus humerin. suprascapularis (C5)Shoulder joint: abduction, auxiliary external rotation
infraspinatusfossa infraspinatatuberculum majus humerin. suprascapularis (C5-C6)Joint of the shoulder: external rotation, auxiliary abduction
teres minormargo lateralis scapulaetuberculum majus humerin. axillaris, n. suprascapularis, (C4-C6)Joint of the shoulder: external rotation, auxiliary dorsal flexion, auxiliary abduction
teres majorangulus inferior scapulae margo lateralis scapulaecrista tuberculi minorisn. subscapularis (C6)Shoulder joint: dorsal flexion, adduction, internal rotation
subscapularisfacies costalis scapulaetuberculum minus humerin. subscapularisShoulder joint: internal rotation, auxiliary dorsal flexion, auxiliary adduction

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