Shoulder Anatomy Muscle

The muscles of the shoulder are associated with movements at the shoulder joint. The muscles of the shoulder bridge the transitions from the torso into the headneck area and into the upper extremities of the arms and hands.

Anatomy Of The Human Shoulder Joint

These muscles include the pectoralis major pectoralis minor subclavius and the serratus anterior muscle.

Shoulder anatomy muscle. These muscles form the outer shape of the shoulder and underarm. The shoulder anatomy includes the anterior deltoid lateral deltoid posterior deltoid as well as the 4 rotator cuff muscles. The shoulder has about eight muscles that attach to the scapula humerus and clavicle.

For that reason and because of the dexterity of the shoulder joint itself the musculature of the shoulder is complex ranging from massive prime mover muscles to finer stabilizer and fixator muscles. The shoulder is one of the largest and most complex joints in the body. Anterior shoulder muscles also called the pectoral muscles attach the upper extremity to the clavicle and the thoracic cage.

The muscles in the shoulder aid in a wide range of movement and help protect and maintain the main shoulder joint known as the glenohumeral joint. The shoulder joint is formed where the humerus upper arm bone fits into the scapula shoulder blade like a ball and socket. They produce the characteristic shape of the shoulder and can be divided into two groups.

Learn about these muscles their origin and insertion points and their functional anatomy. All of them are supplied by the respective branches of the brachial plexus. The rotator cuff muscles are perhaps the most important members of the muscles of the shoulder joint and are essential to the healthy functioning of the glenohumeral joint.

Reverse Total Shoulder Arthroplasty Explained The Hughston