anconeus muscle

(redirected from Anconeous)

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
References in periodicals archive ?
Its proximal epiphysis projects into proximal surpassing the radius head, forming a highly developed olecranon with a wide tuberosity (Tuber olecrani) for the insertion of the triceps brachii muscle (Fig.1); a medial surface for the insertion of the anconeus-epitrochlearis muscle, and a lateral surface for the muscle mass homologous to the anconeous. A pointed process unfolds in the caudomedial margin of the olecranon for the insertion of the dorsi-epitrochlearis muscle.
The olecranon tuberosity, the anconeous process and both coronoid processes are described in the ulna of domestic mammals (Dyce et al.) and the terms are found in the terminology of the NominaAnatomica Veterinaria (ICVGAN) but not in the Terminologia Anatomica for the human (FICAT, 1998), which is the basis primate for comparisons.
(a) Olecranon tuberosity, (b) Trochlear notch, (c) Radial notch, (d) Lateral surface, (e) Groove for the tendon of the extensor carpi ulnaris muscle, (f) Parastyloid process, (g) Anconeous process, (h) Process for the insertion of the dorsi-epitrochlearis muscle, (i) Ulnar tuberosity, (j) Medial surface, (k) Styloid process, (l) Ulnar head, (m) Lateral coronoid process, (n) Medial coronoid process, (o) Cranial surface, (p) Interosseous margin (craniolateral), (q) Craniomedial margin, (r) Crest for the insertion of the pronator quadratus, (s) subcutaneous surface (caudal), (t) Caudomedial margin, (u) Caudolateral margin.