Anconeus muscle

Anconeus muscle (Pronunciation: an-koh-nee-us) is a small muscle located on the posterior aspect of the elbow joint. Its primary function is to assist in elbow extension and forearm rotation.

Etymology

The term Anconeus is derived from the Greek word ankon, which means elbow.

Structure

The Anconeus muscle originates from the lateral epicondyle of the humerus and inserts into the lateral surface of the olecranon process and the superior part of the posterior ulna. It is innervated by the radial nerve, which is a branch of the brachial plexus.

Function

The primary function of the Anconeus muscle is to assist in the extension of the elbow joint. It also helps in the stabilization of the elbow during movements of the forearm and hand. Additionally, it aids in the abduction of the ulna during pronation and supination of the forearm.

Clinical significance

Injury or damage to the Anconeus muscle or its nerve supply can result in weakness or loss of elbow extension and forearm rotation. This can significantly affect the ability to perform daily activities that require these movements.

Related terms

• Elbow joint
• Humerus
• Ulna
• Radial nerve
• Brachial plexus

See also

• List of muscles of the human body

External links

• Medical encyclopedia article on Anconeus muscle
• Wikipedia's article - Anconeus muscle

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