anconeus muscle

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an·co·ne·us mus·cle

[TA]
origin, back of lateral condyle of humerus; insertion, olecranon process and posterior surface of ulna; action, extends forearm and abducts ulna in pronation of wrist; nerve supply, radial.
Synonym(s): musculus anconeus [TA], anconeus

an·co·ne·us mus·cle

(an-kō'nē-ŭs mŭs'ĕl) [TA]
Origin, back of lateral epicondyle of humerus; insertion, olecranon process and posterior surface of ulna; action, extends forearm and allows pronation of wrist; nerve supply, radial.
Synonym(s): musculus anconeus [TA] .
[mod. L. elbow]

anconeus muscle

A short muscle along the back of and outside the elbow. It originates from the lateral epicondyle of the humerus, crosses the back of the elbow joint on the same side, attaches to the lateral surface of the olecranon process and the adjacent surface of the ulna. It extends the forearm and abducts the elbow as the forearm pronates. It is innervated by the radial nerve (C7, C8, T1).
See also: muscle