Musculus anconeus

Musculus Anconeus is a small muscle located in the human forearm. It is triangular in shape and is situated near the elbow, specifically on the lateral side of the elbow joint. The primary function of the musculus anconeus is to assist in the extension of the forearm and stabilize the elbow joint.

Anatomy

The musculus anconeus originates from the posterior surface of the humerus, near the lateral epicondyle. It inserts into the lateral surface of the olecranon process and the superior part of the posterior surface of the ulna. The muscle fibers run obliquely downwards and medially, forming a triangular shape.

Function

The primary function of the musculus anconeus is to assist the triceps brachii in extending the forearm. It also plays a role in stabilizing the elbow joint during movements of the forearm and hand. Additionally, it helps to prevent displacement of the ulna during pronation and supination of the forearm.

Clinical Significance

Injury or damage to the musculus anconeus can result in a loss of stability in the elbow joint and a decrease in the ability to extend the forearm. This can significantly impact the functionality of the arm and hand. Conditions such as tennis elbow or golfer's elbow can also affect the musculus anconeus.

See Also

• Elbow
• Forearm
• Humerus
• Ulna
• Triceps Brachii

References

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