Human Anatomy: Muscle Groups

Human Anatomy

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Muscle Function & Other Pertinent Medical Information
ORIGIN: Oval area (lower third) of lateral side of inferior angle of scapula below teres minor
INSERTION: Medial lip of bicipital groove of humerus
ACTION: Medially rotates and adducts arm. Stabilizes shoulder joint
NERVE: Lower subscapular nerve (C5, 6) (from posterior cord)

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