Anconeus muscle

Anconeus muscle

Muscle infobox
Name = Anconeus muscle
Latin = musculus anconeus
GraySubject = 125
GrayPage = 454

Caption = Back of right upper extremity. (Anconeus labeled at bottom center.)

Caption2 = Posterior surface of the forearm. Superficial muscles. (Anconeus visible at center right.)
Origin = lateral epicondyle of the humerus proximally
Insertion = lateral surface of the olecranon process and the superior part of the posterior ulna distally
Action = It is partly blended in with the triceps, which it assists in extension of the forearm. It also stabilises the elbow and abducts the ulna during pronation.
Blood = deep brachial artery, recurrent interosseous artery
Nerve = radial nerve (C7, C8, and T1)
MeshName =
MeshNumber =
DorlandsPre = m_22
DorlandsSuf = 12548375
The anconeus muscle is a small muscle on the posterior aspect of the elbow joint.

Some consider anconeus to be a continuation of the triceps brachii muscle. [Williams, P. et al, 1995, Gray's Anatomy, 38th ed., Churchill Livingstone] [Jones, W. et al.(eds) , 1953, Buchanan's Manual of Anatomy, 8th ed., Balliére, Tindall and Cox., pp. 496] [Grant, J. & Basmajian J., 1965, Grant's Method of Anatomy, 7th ed., The Williams & Wilkins Company, Baltimore, pp. 163-164] Some sources consider it to be part of the posterior compartment of the arm,cite web |url= |title=Dissector Answers - Axilla & Arm |accessdate=2008-01-17 |format= |work=] while others consider it part of the posterior compartment of the forearm.cite web |url= |title=The Radius and Ulna |accessdate=2008-01-17 |format= |work=]

The Anconeus muscle can easily be palpated just lateral to the olecranon process of the ulna.

Its function is trivial in humans. It assists in extension of the elbow, where the triceps brachii is the principal agonist. It also prevents the elbow joint capsule being pinched in the olecranon fossa during extension of the elbow. Anconeus also abducts the ulna and stabilizes the elbow joint.




External links

* [ PTCentral]
* [ at]

Wikimedia Foundation. 2010.

Look at other dictionaries:

  • anconeus muscle — musculus anconeus …   Medical dictionary

  • anconeus muscle lateral — caput laterale musculi tricipitis brachii …   Medical dictionary

  • anconeus muscle medial — caput mediale musculi tricipitis brachii …   Medical dictionary

  • anconeus muscle short — caput laterale musculi tricipitis brachii …   Medical dictionary

  • anconeus — SYN: a. muscle. [L.] * * * an·co·ne·us aŋ kō nē əs n, pl nei nē .ī a small triangular extensor muscle that is superficially situated behind and below the elbow and that extends the forearm called also anconeus muscle * * * n. a muscle behind the… …   Medical dictionary

  • Muscle — is the tissue of the body which primarily functions as a source of power. There are three types of muscle in the body. Muscle which is responsible for moving extremities and external areas of the body is called "skeletal muscle." Heart… …   Medical dictionary

  • Anconeus — An*co ne*us, n. [NL., fr. L. ancon elbow.] (Anat.) A muscle of the elbow and forearm. [1913 Webster] …   The Collaborative International Dictionary of English

  • Muscle — For other uses of Muscle , see Muscle (disambiguation). A top down view of skeletal muscle Muscle (from Latin …   Wikipedia

  • anconeus — n. a muscle behind the elbow that assists in extending the forearm …   The new mediacal dictionary

  • Articularis cubiti muscle — Infobox Muscle Name = PAGENAME Latin = musculus articularis cubiti. GraySubject = 124 GrayPage = 445 Caption = Triceps brachii Caption2 = Origin = Insertion = Blood = Nerve = radial nerve Action = Antagonist = MeshName = MeshNumber = DorlandsPre …   Wikipedia