Extensor carpi ulnaris

Origin	Common extensor tendon (lateral epicondyle), ulna
Insertion	5th metacarpal
Action(s)	The Extensor carpi ulnaris extends the wrist, but when acting alone inclines the hand toward the ulnar side; by its continued action it extends the elbow-joint. The muscle is a minor extensor of the carpus in carnivores, but has become a flexor in ungulates. In this case it is described as ulnaris lateralis.
Nerve Supply	The posterior interosseus nerve, a branch of the radial nerve
Arterial Supply	Ulnar artery
Physical Exam	Enter physical examination maneuvers for muscle
Clinical Importance	Enter clinical importance of muscle
Disease States	Enter links to pages where muscle involved
Discussion	Antagonist: Flexor carpi ulnaris

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Extensor carpi ulnaris

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Last Updated on June 27, 2024

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