Biceps Brachii-Long Head

shoulder-muscle-model-subscapularis-labeled

Muscle Origin

Supraglenoid Tubercle of Scapula to radial tuberosity.

The biceps brachii is also known as the “long head”. The long head extends from its origin on the superglenoid tubercle of the scapula and passes over the head of the humerus before merging with the short head.

Insertion

Posterior surface of the olecranon process of the ulna. The olecranon is the bony point of the elbow.

Action

Flexes elbow and supinates hand.

Extension of the arm at the shoulder, adduction of the arm at the shoulder, extension of the forearm at the elbow.

Innervation – Nerve control

Musculocutaneous nerve (C5,6).

Musculocutaneous nerve (C5,6) It starts from the lateral cord of the brachial plexus, opposite the lower border of the pectoralis major.

Artery

Muscular branches of the brachial artery.

The brachial artery is a major blood vessel found in the upper arm. It is the main supplier of blood to the arm and hand.

Antagonist muscles

The antagonist muscles are the Triceps brachii and the Anconeus.

Pictures of muscles

 

Trigger Point Referrals

 

Stretching description

 

Exercises

 

Injuries

 

Treatment

 

Additional Resources
Sports Lab
Wiki
Innerbody
AAOS
The Wellness Digest

Chandler Physical Therapy © 2014 Frontier Theme