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Extensor Carpi Radialis Longus Anatomy: Origin, Insertion, Action

Extensor Carpi Radialis Longus Anatomy Study

Extensor Carpi Radialis Longus Anatomy

Origin: Proximally to the lateral supracondylar ridge of humerus.
Insertion: Distally, to the back base of the second metacarpal bone
Action: Extension of the wrist
Blood Suppy: Radial recurrent artery from the radial artery.
Innervation:  Radial Nerve (C5,6)

Synergist: Supinator, Brachioradialis,  Extensor Carpi Radialis Brevis, Extensor Pollicis Brevis, Extensor Pollicis Longus, Abductor Pollicis Longus,  Extensor Digitorum, Extensor Digiti Minimi, Extensor Carpi Ulnaris, Extensor Indicis.

Antagonist: Flexor Carpi Radialis, Pronator Teres, Flexor Carpi Ulnaris, Palmaris Longus,  Flexor Digitorum Superficialis, Flexor Digitorum Profundus, Pronator Quadratus, Flexor Pollicis Longus

For pain and symptom information see: Extensor Carpi Radialis Longus Pain


Primary Actions of the Extensor Carpi Radialis Longus:

1. Extension of the wrist

  • Agonists: Extensor Carpi Radialis Brevis, Extensor Carpi Ulnaris
  • Antagonists: Flexor Carpi Radialis, Palmaris Longus, Longus,  Flexor Carpi Ulnaris

2. Radial Deviation of the wrist

  • Agonists: Extensor Carpi Radialis Brevis, Flexor Carpi Radialis
  • Antagonists: Flexor Carpi Ulnaris, Extensor Carpi Ulnaris

Musculoskeletal Anatomy Flashcards

Musculoskeletal Anatomy Flashcards Musculoskeletal Flashcards Are you a student or professional therapist who needs to brush up on the musculoskeletal system? Dr. Joseph E. Muscolino DC has developed a comprehensive set of flashcards that will help develop a mind’s picture of exactly where the muscles lie under the skin. A highly recommended study aid for students. Great for non students who want an easy comprehensive anatomy guide.


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!



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