Anconeous

• O (origin):

  • Posterior surface of lateral epicondyle of humerus
  • adjacent joint capsule

  A) Aconeus

  
• R (direction):

  • Medially & distally

  A) Aconeus

  
• I (insertions):

  • Lateral surface of olecranon
  • upper 1/4 of posterior surface of ulna

  A) Aconeus

  
• A (actions):

  • Assists elbow extension
  • Abducts ulna & extends distal end of ulna during pronation

  A) Aconeus

  
• NS (nerve supply):

  • Radial nerve (C5 - T1)

  A) Aconeus