Anterior Deltoid

• O (origin)

  • Anterior border of the lateral 1/3 of the clavicle

  A) Anterior Deltoid

  
• R (direction)

  • Obliquely down and posteriorly

  A) Anterior Deltoid

  
• I (insertion)

  • Deltoid tuberosity on the lateral surface of the humerus via a short thick tendon

  A) Anterior Deltoid

  
• A (actions)

  • Strong flexor and medial rotator of the glenohumeral joint

  A) Anterior Deltoid

  
• NS (nerve supply)

  • Axillary nerve (C5, C6)

  A) Anterior Deltoid