Anatomy of Glenoid Cavity or Glenoid Fossa ; Overview, Location, Structure, Features, Clinical скачать в хорошем качестве

Anatomy of Glenoid Cavity or Glenoid Fossa ; Overview, Location, Structure, Features, Clinical

The glenoid cavity, also known as the glenoid fossa, is a shallow, articular surface located on the scapula. It plays a crucial role in forming the shoulder joint. Here’s a detailed look at its anatomy: Location Scapula: The glenoid cavity is located on the lateral aspect of the scapula, at the end of the lateral border. Structure Shape: The glenoid cavity is shallow and oval-shaped, somewhat resembling a socket. Articular Surface: It is covered with articular cartilage, which provides a smooth surface for the head of the humerus to articulate with. Surrounding Structures Glenoid Labrum: This fibrocartilaginous ring surrounds the rim of the glenoid cavity, deepening the socket and improving joint stability. Supraglenoid Tubercle: Located at the superior part of the glenoid cavity, providing attachment for the long head of the biceps brachii. Infraglenoid Tubercle: Located at the inferior part of the glenoid cavity, providing attachment for the long head of the triceps brachii. Function Articulation with Humerus: The primary function of the glenoid cavity is to articulate with the head of the humerus, forming the glenohumeral (shoulder) joint. This allows for a wide range of shoulder movements, including flexion, extension, abduction, adduction, and rotation. Clinical Significance Stability: Due to its shallow nature, the glenoid cavity relies heavily on surrounding structures like the glenoid labrum, ligaments, and rotator cuff muscles to maintain shoulder stability. Shoulder Dislocation: The shallow depth of the glenoid cavity makes the shoulder joint prone to dislocation, especially during high-impact activities or trauma. Labral Tears: Injuries to the glenoid labrum, such as SLAP lesions (Superior Labrum from Anterior to Posterior), can affect joint stability and function. Understanding the anatomy of the glenoid cavity is essential for diagnosing and treating shoulder injuries and conditions. It plays a central role in the movement and stability of the shoulder joint. #GlenoidCavity #GlenoidFossa