Extensor Carpi Radialis Longus

• O (origin):

  • Lower 1/3 lateral supracondylar ridge
  • Adjacent intermuscular septum

  A) Extensor Carpi Radialis Longus

  
• R (direction):

  • Distally

  A) Extensor Carpi Radialis Longus

  
• I (insertion):

  • Posterior aspect of base of 2nd metacarpal

  A) Extensor Carpi Radialis Longus

  
• A (actions):

  • Wrist extension and radial deviation

  A) Extensor Carpi Radialis Longus

  
• NS (nerve supply):

  • Radial nerve (C5 - T1)

  A) Extensor Carpi Radialis Longus