Glenoid cavity

Glenoid Cavity

The Glenoid Cavity or Glenoid Fossa is a part of the Scapula (shoulder blade) in human anatomy. It is a shallow, pyriform articular surface, which is located on the lateral angle of the scapula. It is directed laterally and forward and articulates with the Humerus; it is broader below than above and its vertical diameter is the longest.

Anatomy

The Glenoid Cavity is covered with fibrocartilage, unlike most of the articular surfaces in the body which are covered with hyaline cartilage. The cavity surface presents a tubercle called the Supraglenoid Tubercle and an impression, the Infraglenoid Tubercle, which give attachment to the long heads of the Biceps Brachii and Triceps Brachii respectively.

Clinical Significance

The Glenoid Cavity is susceptible to various injuries and conditions. One of the most common is a Glenoid Labrum Tear, which is a tear in the ring of cartilage that surrounds the Glenoid Cavity. This can result in shoulder instability and pain. Other conditions that can affect the Glenoid Cavity include Osteoarthritis, Rheumatoid Arthritis, and Glenohumeral Joint Instability.

See Also

• Scapula
• Humerus
• Glenoid Labrum Tear
• Osteoarthritis
• Rheumatoid Arthritis
• Glenohumeral Joint Instability

External Links

• WikiMD Article on Glenoid Cavity

Glenoid cavity Resources
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