Pronator Quadratus - Muscle Physiology & Functional Anatomy

 

Pronator Quadratus Muscle

Anatomy

 

Origin:

  • Lower quarter of anteromedial shaft of ulna

Insertion

  • Lower quarter of anterolateral shaft of radius and some interosseous membrane



Major Artery:

  • Anterior interosseous artery

 

Neural Innervation:

  • Median (anterior interosseous) nerve (C8)

 

Trigger Points: 

 

Physiology

 

Concentric Functions:

  • Pronation of the forearm

  • Aids in wrist extension (weak)

Eccentric Functions:


Isometric Function:


Related Muscles


Antagonist:

Exercises:

 

 


More Images of the Pronator Quadratus Muscle

Pronator Quadratus Muscle


More Information about the Pronator Quadratus Muscle

The pronator quadratus muscle pronates the hand by pulling the lateral side of the radius towards the ulna. The deep muscle fibers of the pronator quadratus bind the two bones in the forearm bound together.

 

Back to Functional Anatomy Chart