Letter I

Infraspinatus muscle

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>The infraspinatus muscle; >The teres minor muscle, which (like the infraspinatus muscle) helps in the outward turning (external rotation) of the arm; >The supraspinatus muscle, which is responsible for elevating the arm and moving it away from the body; and >The subscapularis muscle, which moves the arm by turning it inward (internal rotation).</LI></UL> Damage to the rotator cuff is one of the most common causes of shoulder pain.

The term 'infraspinatis' means below (infra) the spine.

The infraspinatus muscle originates below the 'spine' of the scapula (the wingbone).

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