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Brachialis Anatomy: Origin, Insertion, Action

Brachialis origin, insertion, action and innervation.


O, I, A of the Brachialis

Origin: Lower half of the anterior aspect of the humerus
Insertion: Coronoid process and the tuberosity of the ulna.
Actions: Flexion of the forearm at the elbow
Innervation: Musculocutaneous nerve (C5, C6)
Vascular Supply: Muscular branches from the brachial artery and the radial recurrent artery from the radial artery

Primary Actions of the Brachialis:

1. Flexion of the forearm at the elbow


  • Biceps Brachii
  • Brachioradialis


  • Triceps Brachii
  • Anconeus



Information about cause and effect of brachialis pain:

Brachialis Muscle: Arm, Elbow, Thumb Pain

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.

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