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Biceps Brachii Anatomy: Origin, Insertion, Action

Biceps Brachii

Biceps Brachii

O, I, A of the Biceps Brachii

Origin: Long head: supraglenoid tubercle and the superior portion of the glenoid labrum
Short head: lateral aspect of the apex of the coracoid process of the scapula
Insertion: Radial tuberosity and the bicipital aponeurosis.
Actions: Flexion of forearm, Supinates forearm, Flexion of the arm at the shoulder
Innervation: Musculocutaneous nerve (C5,6)
Vascular Supply: Muscular branches of the brachial artery

Primary Actions of the Biceps Brachii:

1. Flexion of the forearm at the elbow

  Agonists:

  • Brachialis
  • Brachioradialis

  Antagonists:

  • Triceps Brachii
  • Anconeus

 

Secondary Actions of the Biceps Brachii:

1. Assists with flexion of the arm at the shoulder

  Agonists:

  • Deltoid (anterior part)
  • Coracobrachialis
  • Pectoralis Major (clavicular head)

  Antagonists:

  • Deltoid (posterior part)
  • Triceps Brachii (long head)
  • Latissimus Dorsi
  • Pectoralis Major (sternal head)
  • Teres Major

2. Assists with supination of the forearm

  Agonists: 

  • Serratus posterior inferior
  • Transversus Abdominis

  Antagonists: 

  • Serratus posterior superior
  • Levatores costarum breves
  • Levatores costarum longi
biceps-fea

Information about cause and effect of biceps brachii pain:

Biceps Brachii Muscle: Shoulder, Elbow Pain


Basic Clinical Massage Therapy basic_clinical_massa 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.

Trail Guide To The Body 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!    

 

References:

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