For the hip joint, see the Acetabular labrum, also known as the "glenoidal labrum of the hip joint" in older texts.

Glenoidal labrum
Glenoid fossa of right side.
Latin	labrum glenoidale
Gray's	subject #83 319

The glenoidal labrum (glenoid ligament) is a fibrocartilaginous rim attached around the margin of the glenoid cavity in the shoulder blade. The shoulder joint is considered a 'ball and socket' joint. However, in bony terms the 'socket' (the glenoid fossa of the scapula) is quite shallow and small, covering at most only a third of the 'ball' (the head of the humerus). The socket is deepened by the glenoidal labrum.

The labrum is triangular in section, the base is fixed to the circumference of the cavity, while the free edge is thin and sharp.

It is continuous above with the tendon of the long head of the Biceps brachii, which gives off two fasciculi to blend with the fibrous tissue of the labrum.

It deepens the articular cavity, and protects the edges of the bone.

[edit] See also

• Bankart lesion
• Hill-Sachs lesion
• Acetabular labrum

[edit] External links

• glenoid+labrum at eMedicine Dictionary
• Anatomy at Dartmouth upper%20extremity/arthrogramaxial2

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

v • d • e Joints and ligaments of upper limbs (TA A03.5, GA 3.313) Shoulder Sternoclavicular Anterior sternoclavicular · Posterior sternoclavicular · Interclavicular · Costoclavicular Acromioclavicular Syndesmoses: Coracoacromial · Superior transverse scapular · Inferior transverse of scapula Synovial: Acromioclavicular · Coracoclavicular (trapezoid, conoid) Glenohumeral Capsule · Coracohumeral · Glenohumeral (superior, middle, and inferior) · Transverse humeral · Glenoid labrum Elbow Humeroradial Radial collateral Humeroulnar Ulnar collateral Proximal radioulnar Anular · Oblique cord Forearm Distal radioulnar Volar radioulnar · Dorsal radioulnar · Interosseous membrane of forearm Joints of hand Wrist/radiocarpal Palmar radiocarpal · Dorsal radiocarpal · Palmar ulnocarpal · Ulnar collateral · Radial collateral Intercarpal, midcarpal Pisohamate · Scapholunate Carpometacarpal Dorsal carpometacarpal · Palmar carpometacarpal (pisometacarpal) Intermetacarpal Deep transverse metacarpal · Superficial transverse metacarpal Metacarpophalangeal Palmar · Collateral Interphalangeal Palmar · Collateral Other Carpal tunnel · Ulnar canal

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