Coracobrachialis

• O (origin)

  • From a rounded tendon on the apex of the coracoid process on the scapula

  A) Coracobrachialis

  
• R (direction)

  • Inferiorly and laterally

  A) Coracobrachialis

  
• I (insertions)

  • Roughened area halfway down the medial side of the humeral shaft, opposite the deltoid tuberosity

  A) Coracobrachialis

  
• A (actions)

  • Adduction of the glenohumeral joint
  • may assist in some flexion but only in a small role

  A) Coracobrachialis

  
• NS (nerve supply)

  • Musculocutaneous nerve (C5 - C7)

  A) Coracobrachialis