Coracoid process

Study entry

Description

Beak-shaped projection above the glenoid cavity, directed forward and outward, like a bent finger.

Relations

Origin of the short head of the biceps and of the coracobrachialis; insertion of the pectoralis minor; the coracoclavicular ligament attaches to it.

Source: cap. 3, «Huesos del miembro superior: escápula»

Clinical correlation

Acromioclavicular dislocation ("shoulder separation")

The coracoclavicular ligament is strong, but the joint itself is weak and is injured by a direct blow: a hard fall on the shoulder or the hand in rugby, football, hockey and fighting sports, or a strong blow to the upper back. It is serious when the acromioclavicular and coracoclavicular ligaments rupture: the shoulder separates from the clavicle and drops with the weight of the limb, the capsule tears and the acromion may pass under the tip of the clavicle. The clavicle stands out on top.

Related clinical cases

• Acromioclavicular dislocation ("shoulder separation")

Other structures in this region

• Conoid tubercle
• Trapezoid line
• Scapular notch
• Glenoid cavity
• Supraglenoid tubercle
• Infraglenoid tubercle
• Subscapular fossa
• Supraspinous fossa