Extensor Carpi Radialis Brevis - Muscle Physiology & Functional Anatomy

 

Extensor Carpi Radialis Brevis Muscle

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: 

Trigger Points for the extensor carpi radialis brevis muscle

 

Physiology

 

Concentric Functions:

  • Extends & abducts the hand at the wrist

Eccentric Functions:


Isometric Function:


Related Muscles


Antagonist:

Exercises:

 

 


More Images of the Extensor Carpi Radialis Brevis Muscle

How to Palpate the Extensor Carpi Radialis Brevis

Extensor Carpi Radialis 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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