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Extensor Carpi Ulnaris Anatomy: Origin, Insertion, Action, Innervation

Extensor Carpi Ulnaris Origin, Insertion, Aco

Extensor Carpi Ulnaris

O, I, A of the Extensor Carpi Ulnaris

Origin: Lateral epicondyle of humerus via the common extensor tendon
Insertion: Tubercles on the medial side of the base of the fifth metacarpal
Actions: Extension of the wrist
Innervation: C6, C7, C8 Radial Nerve
Vascular Supply: Posterior interosseous artery from the ulnar artery

Primary Actions of the Extensor Carpi Ulnaris:

1. Extension of the wrist

  Agonists: Extensor carpi radialis longus, extensor carpi brevis

  Antagonists: Flexor Carpi Radialis Longus, Flexor Carpi Ulnaris, Palmaris Longus

2. Ulnar deviation of the wrist

  Agonists: Flexor Carpi Ulnaris

  Antagonists: Extensor Carpi Radialis Longus, Extensor Carpi Radialis Brevis, Flexor Carpi Radialis


Information about cause and effect of extensor carpi ulnaris pain:

Extensor Carpi Ulnaris Muscle: Wrist Pain

Learn Human Anatomy



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.




Basic Clinical Massage Therapy


Out of the scores of books in my office Basic Clinical Massage Therapy is by far the most referenced book in my library. The musculoskeletal system is overlaid on human models allowing you to learn the precise location, origin and insertions of each muscle. The models are pictured in various poses throughout the book which also helps you visualize muscles in motion and their actions relationship with the skeletal structure and other muscles. Though it is written for massage therapists, it is an excellent book for anyone who wants to learn about the muscular system. MT's will benefit from recommended treatments for each muscle.



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