Olecranon process

Olecranon Process

The Olecranon Process is a large, bony prominence that can be felt at the elbow. It is a part of the Ulna, one of the two bones in the Forearm. The Olecranon Process serves as an attachment site for muscles and ligaments that extend and flex the elbow joint.

Anatomy

The Olecranon Process is located at the upper end of the Ulna. It forms the pointed portion of the elbow and fits into the Olecranon Fossa of the Humerus when the arm is extended. The Olecranon Process is covered by a bursa, a small fluid-filled sac that reduces friction between the bone and overlying soft tissues.

Function

The primary function of the Olecranon Process is to provide leverage for the action of the Triceps Brachii Muscle, which is the primary extensor of the forearm. The Olecranon Process also serves as a point of attachment for the Anconeus Muscle and several ligaments, including the Ulnar Collateral Ligament and the Annular Ligament.

Clinical Significance

Injuries to the Olecranon Process, such as fractures or bursitis, can cause pain and limit the range of motion of the elbow. Treatment may involve immobilization, physical therapy, or in severe cases, surgery.

See Also

• Elbow
• Ulna
• Humerus
• Triceps Brachii Muscle
• Anconeus Muscle
• Ulnar Collateral Ligament
• Annular Ligament

Olecranon process Resources
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