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MUSCLE ANATOMY – SHOULDERS – DELTOIDS

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1. ANTERIOR FIBERS – Physiopedia
   (1) Flexion of the arm
   (2) Ab·duction of the arm
   (3) Horizontal Flexion of the arm at the shoulder joint
   (4) Internal/Medial Rotation
2. LATERAL FIBERS
   (1) Ab·duction of the arm
3. POSTERIOR FIBERS
   (1) Extends
   (2) Ab·duction of the arm
   (3) Horizontal Extension of the arm at the shoulder joint
   (4) External/Lateral Rotation

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VIDEOS

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1. Deltoid Muscle .
2. Deltoids & Rotator Cuff .
3. Deltoid Muscle .
4. Large Shoulder Muscles .

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