Extensor Digiti Minimi

• O (origin):

  • Common extensor origin

  A) Extensor Digiti Minimi

  
• R (direction):

  • Distally and medially

  A) Extensor Digiti Minimi

  
• I (insertion):

  • Medial side of extensor hood of 5th finger

  A) Extensor Digiti Minimi

  
• A (actions):

  • Extension of 5th finger (all joints)
  • Weak extension of the wrist

  A) Extensor Digiti Minimi

  
• NS (nerve supply):

  • Posterior interosseous branch of radial nerve (C5 - T1)

  A) Extensor Digiti Minimi