What is image shoulder anatomy?

The shoulder is one of the most complex joints in the human body and it consists of three different bones, muscles, ligaments, tendons, and nerves. The three bones that form the shoulder are the humerus (upper arm bone), the scapula (shoulder blade), and the clavicle (collarbone).

The main muscles of the shoulder are the rotator cuff muscles, which help to stabilize and move the shoulder joint. These muscles include the supraspinatus, infraspinatus, teres minor, and subscapularis. Other important muscles involved in shoulder movement include the deltoid, trapezius, and serratus anterior.

There are many ligaments in the shoulder that help to keep it stable and prevent dislocation. The most important of these is the glenohumeral ligament, which connects the humerus to the scapula. Other ligaments include the coracoclavicular ligament, which connects the clavicle to the coracoid process of the scapula, and the acromioclavicular ligament, which connects the acromion (part of the scapula) to the clavicle.

The tendons in the shoulder connect the muscles to the bone. The rotator cuff tendons run along the top of the humerus and attach to the bones of the shoulder blade. Other tendons in the shoulder include the biceps tendon, which attaches the biceps muscle to the bones of the shoulder and elbow, and the pectoralis major tendon, which attaches the chest muscle to the humerus.

Finally, the nerves that supply the shoulder include the axillary nerve, which controls the deltoid and teres minor muscles, and the suprascapular nerve, which controls the rotator cuff muscles. These nerves can be injured in a variety of ways, leading to weakness or loss of function in the shoulder.