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Three Muscles Attach to the Coracoid Process
  • Posted by:martin
  • Posted on : September 23, 2015

shoulder_coracoid process_anatomy©


Three Muscles Attach to the Coracoid Process

Three muscles attach to the coracoid process, the little bony projection of the scapula that sticks out just inferior to the acromioclavicular joint. These are just three of myriad muscles that attach to some aspect of the shoulder blade.

Pectoralis Minor is a small muscle deep to pectoralis major, the larger muscle of the chest. It originates on ribs 3-5 near the sternum and then inserts at the coracoid process.  Its job is to rotate the scapula and draw it inferiorly, as well as to raise the ribs.

Coracobrachialis is on the medial side of the upper arm. Its origin is the corcaoid process and it inserts on the mid-medial surface of the humerus. Coracobrachialis flexes and adducts the arm at the shoulder.

The short head of the Biceps Brachii also attaches to the coracoid process. It inserts at the radial tuberosity and bicipital aponeurosis and fascia of the forearm. This muscle weakly flexes the arm at the shoulder and flexes and helps supinate the forearm at the elbow.

There is more than just the rotator cuff muscles when it comes to massaging the shoulder!