Extensor Carpi Radialis Brevis

Parent Structures

• Superficial Posterior Muscles of the Forearm

Proximal/Superior Attachment

• Lateral Epicondyle - Common Extensor Tendon
• Radial Collateral Ligament

Distal/Inferior Attachment

• Base of 3rd Metacarpal - Posterior Surface

Joint Actions

• Agonist
  • Wrist
    • Abduction - Radial Deviation
    • Extension

Nerve Innervation

• Radial Nerve