Glenoid fossa of scapula

The glenoid cavity also known as the glenoid fossa of the scapula is the depression in the shoulder blade bone or scapula in which the ball-shaped top of the upper arm bone or humerus is set. The glenoid fossa is involved in approximately 10 of all scapular fractures.

Both the scapula and the coracoid process contribute to the articular surface.

Glenoid fossa of scapula. The glenoid or glenoid cavity or fossa is the shallow depression of the scapula found on the lateral angle. Gross anatomy Attachments glenoid labrum. The cavity has a fibrocartilaginous structure on its margin called the glenoid labrum which.

Hemispherical head of the humerus and the glenoid fossa of the scapula. The stability of the humeral head on the glenoid fossa is provided by the musculotendinous cuff. The scapula is surrounded by muscles and is further protected from injury by its vicinity.

The glenoid fossa is involved in approximately 10 of all scapular fractures. Glenoid fossa incongruity is surprisingly well tolerated. Surgery is recommended when 20 or more of the anterior glenoid fossa is involved.

Glenoid rim fractures often lead to chronic shoulder instability. The Glenoid Cavity In Scapula Anatomy. In this image you will find scapula anterior view superior border superior border scapular notch coronoid process infraglenoid tubercle subscapular fossa lateral border an inferior angle in it.

You may also find scapula posterior view lateral angle acromion superior border supraspinous fossa a. The glenoid cavity is part of the shoulder joint. The glenoid cavity also known as the glenoid fossa of the scapula is the depression in the shoulder blade bone or scapula in which the ball-shaped top of the upper arm bone or humerus is set.

The shoulder has three joints. The glenoid fossa is a shallow pear-shaped pit on the superolateral angle of scapula. The concavity of the fossa is less acute than the convexity of the humeral head meaning that the articular surfaces are not fully congruent.

Glenoid fossa It is a shallow pyriform cavity located at the lateral angle of the scapula. It articulates with the rounded head of the humerus forming the glenohumeral shoulder joint. Supraglenoid tubercle It is a small rough projection located immediately above the glenoid fossa near the base of the coracoid process.

The humeral head articulates with the glenoid fossa of the scapula. However only 25 of the humeral head surface makes contact with the glenoid surface at any point in time. The glenoid labrum a fibrocartilaginous ring attaches to the outer room of the glenoid fossa and provides additional depth and stability.

The scapula provides the glenoid fossa glenoidsocket. Both the scapula and the coracoid process contribute to the articular surface. The muscles of the scapula arise from the anterior and posterior spinous fossae on either side of the spine and from the deep surface of the bone.

Scapular neck 25 of patients Glenoid cavity glenoid rim and fossa 10 of scapula fractures Acromion 8 of scapula fractures Coracoid 7 of scapula fractures Patients with scapular fractures present with the ipsilateral upper extremity adducted against the body and protected from movement. Glenoid cavity a depression in the lateral angle of the scapula for articulation with the humerus. Marrow cavity medullary cavity the cavity that contains bone marrow in the diaphysis of a long bone.

Called also medullary canal. It is the position of the glenohumeral joint and of numerous muscle attachments. Glenoid fossa A shallow cavity which connects with the humerus to settle the glenohumeral joint.

The superior part of the lateral border is very significant clinically as it connects with the humerus to make up the shoulder joint. The glenoid or glenoid fossa of the scapula is a part of the shoulder. It is a shallow piriform articular surface which is located in the lateral angle of the scapula.

It is directed laterally and forward and articulates with the head of the humerus. It is wider below than above and. The relatively narrow glenoid fossa of the Muierii 1 early modern human scapula from Romania has been hypothesized to indicate parity in the shoulder loading regimes between Neandertals and this individual that is a lack of throwing-based projectile weaponry Trinkaus 2008.

The glenoid fossa ossifies from four sources. A the coracoid base including the upper third of the glenoid b the deep portion of the coracoid process c the body and d the lower pole which joins with the remainder of the body of the scapula at age 20 to 25 years. The term glenoid fossa can refer to a smooth indentation on either the scapula or the temporal bone.

On the scapula the glenoid fossa is located on the lateral side of the bone. It comprises a smooth oval and lightly indented surface where the. Scapular fractures are relatively uncommon comprising 1 of all fractures 1 and only between 10 and 30 of these involve the glenoid.

25 Because of the thick protective surrounding muscle envelope the forgiving multiplanar ligaments and the recoil of the chest wall direct high-energy trauma is usually necessary to cause a scapular. The remaining corner of the scapula between the superior and lateral borders is the location of the glenoid cavity glenoid fossa. This shallow depression articulates with the humerus bone of the arm to form the glenohumeral joint shoulder joint.

Of glenoid fossa medium 5-20 or small. The glenoid fossa is involved in approximately 10 of all scapular fractures. Glenoid fossa incongruity is surprisingly well tolerated.

Surgery is recommended when 20 or more of the anterior.