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Pronator Quadratus Anatomy: Origin, Insertion, Action

Pronator Quadratus Anatomy Study

Pronator Quadratus Anatomy
Origin: Distal one-fourth of the anteromedial surface of the ulna.
Insertion: Distal one-fourth of the anterolateral surface of the radius.
Action:Pronation of the forearm
Blood Suppy: Muscular branches from the radial artery and the anterior interosseous artery from the ulnar artery.
Innervation: Anterior interosseous branch of the median nerve (C8, T1).

Synergist: Pronator Teres
Antagonists: Supinator

For pain and symptom information see: Pronator Quadratus Forearm, Wrist, Thumb Pain and Symptoms


Primary Actions of the Pronator Quadratus:

1. Pronation of the forearm

  • Agonists: Extensor Digitorum
  • Antagonists: First Dorsal Interosseous, First Palmar Interosseous, First Lumbrical, Flexor Digitorum Superficialis, Flexor Digitorum Profundus

Recommended Anatomy Study Aids

Trail Guide To The Body


The Trail Guide To The Body is another excellent book to help you learn the musculature of the human body. Though the book is geared toward massage therapists and physical therapist assistants, the book with its illustrations and text helps anyone gain a thorough understanding of the human musculoskeletal system and movement. I highly recommend this book for anyone studying anatomy and believe that MTs, PTAs, and teachers of body movements should have this book in their possession. I also highly recommend this book for the lay person who wants to gain understanding of the muscle, skeletal system and how our bodies move. This book will not disappoint!


Anatomy Coloring Book


The Anatomy Coloring Book is one of the best study and reference books for beginning anatomy students. The diagrams are clearly labeled and allow you to see the relationship and placement of the various structures of the body. You will also be surprised how the act of coloring will help with recall. But this is not just a beginners book, it is also great for practitioners and therapists to have on hand to use with clients and patients to use as a visual reference.





The Trigger Point Therapy Workbook – Claire Davies, Amber Davies, and David G. Simons

Basic Clinical Massage Therapy: Integrating Anatomy and Treatment – James H. Clay and David M. Pounds

Trigger Point Therapy for Myofascial Pain – Donna Finando and Steven Finando