Extensor Carpi Ulnaris- Muscle Physiology & Functional Anatomy

 

Extensor Carpi Ulnaris Muscle

Anatomy

 

Origin:

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

Insertion

  • Base of 5th metacarpal via groove by ulnar styloid



Major Arteries:

 

Neural Innervation:

  • Posterior interosseous nerve

 

Trigger Points: 

Trigger Point for the Extensor Carpi Ulnaris

 

Physiology

 

Concentric Functions:

  • Extends & adducts the hand at the wrist

Eccentric Functions:


Isometric Function:


Related Muscles


Antagonist:


Exercises:

 


More Images of the Extensor Carpi Ulnaris Muscle

How to palpate the extensor carpi ulnaris

Extensor Carpi Ulnaris Muscle


More Information about the Extensor Carpi Ulnaris Muscle

In addition to its primary function of wrist extension & adduction the extensor carpi ulnaris muscle acting alone inclines the hand towards the ulnar side (side of little finger) and by its continued action it extends the elbow-joint.

 

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