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Flexor Carpi Radialis Anatomy: Origin, Insertion, Action

Flexor Carpi Radialis Origin, Insertion, Action, Innervation

Flexor Carpi Radialis

O, I, A of the Flexor Carpi Radialis

Origin: Medial epicondyle of the humerus via the common flexor tendon
Insertion: Base of the second and, occasionally, the third metacarpal
Actions: Flexion of the wrist
Innervation: Median nerve (C6, 7)
Vascular Supply: Muscular branches from the radial artery

Primary Actions of the Flexor Carpi Radialis:

1. Flexion of the wrist


  • Palmaris Longus
  • Flexor Carpi Ulnaris


  • Extensor Carpi Radialis Longus
  • Extensor Carpi Radialis Brevis
  • Extensor Carpi Ulnaris


Secondary Actions of the Flexor Carpi Radialis:

1. Assists with radial deviation of the wrist


  • Extensor Carpi Radialis longus
  • Extensor Carpi Radialis Brevis


  • Flexor Carpi Ulnaris
  • Extensor Carpi Ulnaris

2. Assists with flexion of the forearm at the elbow


  • Biceps Brachii
  • Brachioradialis
  • Brachialis


  • Triceps Brachii
  • Anconeus

Information about cause and effect of flexor carpi radialis pain:

Flexor Carpi Radialis Muscle: Wrist and Hand Pain

Recommended Anatomy Study Aids

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.





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