Shoulder Joint Anatomy

Two joints are at the shoulder. Commonly thought of as a single joint the shoulder is actually made up of two separate joints the glenohumeral and acromioclavicular joints.

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The shoulder joint is the junction between the chest and the upper extremity.

Shoulder joint anatomy. It is the major joint connecting the upper limb to the trunk. Other important bones in the shoulder include. The shoulder joint glenohumeral joint is a ball and socket joint between the scapula and the humerus.

Shoulder joint anatomy overview. The shoulder or pectoral girdle is composed of the bones. The most flexible joint in the entire human body our shoulder joint is formed by the union of the humerus the scapula or shoulder blade and the clavicle or collarbone.

This mobility provides the upper extremity with tremendous range. The acromion is a bony projection off the scapula. A second joint in the shoulder is the junction of the collar bone with the shoulder blade.

The shoulder complex is composed of many different tissue types. The glenohumeral joint is the ball and socket junction of the top of the arm bone and the socket of the shoulder blade. To understand this tendency for injury we will first look at the bony anatomy that creates the mobility at the shoulder and then we will discuss how the glenohumeral joint is reinforced by both the ligaments and muscles that cross the joint with particular focus on the rotator cuff muscles.

It is the major joint connecting the upper limb to the trunk. The shoulder joint is formed where the humerus upper arm bone fits into the scapula shoulder blade like a ball and socket. The clavicle collarbone meets the acromion in the acromioclavicular joint.

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