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Muscles of Shoulder
| Muscle | Action |
|---|---|
| Levator scapulae | elevates scapula |
| Pectoralis minor | depresses and protracts shoulder; rotates scapula laterally (downward); elevates ribs if scapula is stationary |
| Rhomboid muscles | adducts and rotates scapula laterally (downward) |
| Serratus anterior | protracts shoulder, abducts and medially rotates scapula (upward) |
| Subclavius | depresses and protracts shoulder |
| Trapezius | may elevate, adduct, depress, or rotate scapula and/or elevate clavicle; can also extend or hyperextend neck |