Extensor Carpi Radialis Brevis - Muscle Physiology & Functional Anatomy

Anatomy

Origin:

• Common extensor origin on anterior aspect of lateral epicondyle of humerus
  

Insertion

• Posterior base of 3rd metacarpal

Major Arteries:

• Radial artery

Neural Innervation:

• Posterior interosseous nerve (C7-C8)

Trigger Points: 

Physiology

Concentric Functions:

• Extends & abducts the hand at the wrist
  

Eccentric Functions:

Isometric Function:

Related Muscles

Antagonist:

• Flexor Carpi Radialis
  

Exercises:

• Forearms Exercises

More Images of the Extensor Carpi Radialis Brevis Muscle

More Information about the Extensor Carpi Radialis Brevis Muscle

The extensor carpi radialis brevis muscle also helps manipulate the wrist so that the hand moves away from the palm and towards the thumb.

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