Glenohumeral

Glenohumeral is the medical term referring to the ball and socket joint that connects the upper arm bone (humerus) to the shoulder blade (scapula). This joint is one of the most flexible in the human body, allowing for a wide range of motion in the arm.

Anatomy

The glenohumeral joint is a synovial ball-and-socket joint that includes the rounded head of the humerus, the glenoid cavity of the scapula, and the fibrocartilaginous glenoid labrum. The joint is surrounded by a complex arrangement of muscles and ligaments, including the rotator cuff and the biceps tendon, which provide stability and allow for a wide range of motion.

Function

The primary function of the glenohumeral joint is to allow for a wide range of motion in the arm. This includes flexion, extension, abduction, adduction, internal rotation, and external rotation. The joint also plays a key role in the ability to lift and carry objects.

Disorders and Treatment

There are several common disorders that can affect the glenohumeral joint, including arthritis, rotator cuff tears, and shoulder impingement syndrome. Treatment for these conditions can range from physical therapy and medication to surgery in more severe cases.

See Also

• Shoulder
• Humerus
• Scapula
• Rotator cuff
• Biceps tendon

References

Glenohumeral Resources
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