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anconeus muscle wikipedia jump to content main menu main menu move to sidebar hide navigation main page contents current events random article about wikipedia contact us contribute help learn to edit community portal recent changes upload file special pages search search appearance donate create account log in personal tools donate create account log in contents move to sidebar hide top 1 structure toggle structure subsection 1 1 innervation 2 function toggle function subsection 2 1 blood supply 3 clinical significance 4 history toggle history subsection 4 1 etymology and spelling 5 additional images 6 references toggle the table of contents anconeus muscle 27 languages العربية български català čeština dansk deutsch español فارسی français galego עברית hrvatski magyar bahasa indonesia íslenska italiano 日本語 한국어 lietuvių nederlands polski română русский svenska ไทย tiếng việt 中文 edit links article talk english read edit view history tools tools move to sidebar hide actions read edit view history general what links here related changes upload file permanent link page information cite this page get shortened url switch to legacy parser print export download as pdf printable version in other projects wikimedia commons wikidata item appearance move to sidebar hide from wikipedia the free encyclopedia muscle on the elbow joint anconeus muscle back of right upper extremity anconeus labeled at bottom center posterior surface of the right forearm superficial muscles anconeus labeled 11 at upper left details origin lateral epicondyle of the humerus proximally insertion lateral surface of the olecranon process of the ulna and the superior proximal part of the posterior ulna artery deep brachial artery recurrent interosseous artery nerve radial nerve c5 c6 c7 c8 and t1 actions it is partly blended in with the triceps which it assists in extension of the elbow it also stabilizes the elbow during pronation and supination and pulls slack out of the elbow joint capsule during extension to prevent impingement identifiers latin musculus anconeus musculus anconaeus ta98 a04 6 02 023 ta2 2510 fma 37704 anatomical terms of muscle edit on wikidata the anconeus muscle or anconaeus anconæus is a small triangular muscle placed behind and below the elbow joint and seems to be continuous by its upper margin with the lateral part of the triceps some consider anconeus to be a continuation of the triceps brachii muscle 1 2 3 some sources consider it to be part of the posterior compartment of the arm 4 while others consider it part of the posterior compartment of the forearm 5 the anconeus muscle can easily be palpated just lateral to the olecranon process of the ulna 6 structure edit anconeus originates by a separate tendon i e not by the common extensor tendon from the posterior surface of the lateral epicondyle of the humerus and inserts distally on the upper fourth of the posterior surface of the ulna and the lateral aspect of the olecranon 6 7 innervation edit anconeus is innervated by a branch of the radial nerve cervical roots 7 and 8 7 from the posterior cord of the brachial plexus called the nerve to the anconeus the somatomotor portion of radial nerve innervating anconeus bifurcates from the main branch in the radial groove of the humerus this innervation pattern follows the rules of innervation of the musculature of the posterior forearm extensor compartment by the radial nerve function edit arteries and nerves of the back of the arm its role in elbow extension is trivial in humans it assists in extension of the elbow where the triceps brachii is the principal agonist and supports the elbow in full extension 7 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 anconeus serves to make minute movements with the radius on the ulna in making slight abduction of the ulna it allows any finger to be used as an axis of rotation of the forearm blood supply edit anconeus is supplied by the middle collateral artery from the profunda brachii artery 7 clinical significance edit trauma to the nerve supply of the anconeus muscle can usually result from a shoulder dislocation or fractures of the upper part of the humerus or around the olecranon or any injury that damages the radial nerve harm inflicted upon the radial nerve through these mechanisms can paralyze the anconeus muscle as well as other extensors of the elbow and wrist 8 there are no specific acquired injuries that exclusively affect the anconeus muscle however any disease that compromises muscular functions particularly arm extension i e muscular dystrophy will affect this particular accessory muscle heterotopic ossification can result from certain trauma as it is an abnormal growth of osseous tissue in non osseous tissue e g muscle tissue the condition is usually found in the hips although there have been documented cases of certain individuals with it occurring in the arms and legs the cause for the process to initiate is not well understood only that it typically results from surgery or trauma 9 history edit etymology and spelling edit anconeus muscle is the anglicized form of the latin expression musculus anconaeus as can be found in the nomina anatomica as ratified in basel in 1895 10 and in jena in 1935 11 12 the anatomic latin adjective anconaeus was written as anconeus in the subsequent edition of the nomina anatomica as authorized in 1955 in paris 13 without any further explanation of this specific diphthong reduction the following edition of 1961 specified its policy by stating that all diphthongs should be eliminated 14 although a selected number of monophthongizations was reverted subsequent editions of the nomina anatomica and its most recent outing terminologia anatomica insisted on writing musculus anconeus 14 15 16 17 18 despite the earlier preference of the nomina anatomica for anconaeus no ancient greek form ἀγκωναῖος is attested 19 in modern greek the expression ἀγκωνιαίος μυς 20 is used with the from anconaeus deviating adjective ἀγκωνιαίος 21 20 anconaeus is derived from the ancient greek noun ἀγκών 22 21 ακών can be translated as bend of the arm 23 or elbow 22 23 the expression musculus anconaeus was translated into english as elbow muscle in 1907 in the english translation 24 of the first edition of the nomina anatomica additional images edit anconeus and other muscles in the dorsum of the right forearm and hand after testut posterior view of left humerus posterior aspect of bones of left forearm deep muscles of posterior surface of the forearm forearm posterior view anconeus muscle anconeus muscle muscles of upper limb cross section references edit 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 dissector answers axilla arm archived from the original on 3 january 2008 retrieved 2008 01 17 the radius and ulna archived from the original on 2008 06 11 retrieved 2008 01 17 1 2 anconeus department of radiology university of washington archived from the original on 9 october 2017 retrieved 9 october 2017 1 2 3 4 anconeus the hosford muscle tables archived from the original on 2012 02 04 retrieved 5 february 2012 clinical considerations of upper limb archived from the original on 2012 08 29 retrieved 2012 12 13 treatment of heterotopic ossification orthopedics 30 6 457 464 2007 06 01 doi 10 3928 01477447 20070601 18 issn 0147 7447 his w 1895 die anatomische nomenclatur nomina anatomica der von der anatomischen gesellschaft auf ihrer ix versammlung in basel angenommenen namen leipzig verlag veit comp kopsch f 1941 die nomina anatomica des jahres 1895 b n a nach der buchstabenreihe geordnet und gegenübergestellt den nomina anatomica des jahres 1935 i n a 3 auflage leipzig georg thieme verlag stieve h 1949 nomina anatomica zusammengestellt von der im jahre 1923 gewählten nomenklatur kommission unter berücksichtigung der vorschläge der mitglieder der anatomischen gesellschaft der anatomical society of great britain and ireland sowie der american association of anatomists überprüft und durch beschluß der anatomischen gesellschaft auf der tagung in jena 1935 endgültig angenommen 4th edition jena verlag gustav fischer international anatomical nomenclature committee 1955 nomina anatomica london colchester spottiswoode ballantyne and co ltd 1 2 international anatomical nomenclature committee 1966 nomina anatomica amsterdam excerpta medica foundation international anatomical nomenclature committee 1977 nomina anatomica together with nomina histologica and nomina embryologica amsterdam oxford excerpta medica international anatomical nomenclature committee 1983 nomina anatomica together with nomina histologica and nomina embryologica baltimore london williams wilkins international anatomical nomenclature committee 1989 nomina anatomica together with nomina histologica and nomina embryologica edinburgh churchill livingstone federative committee on anatomical terminology fcat 1998 terminologia anatomica stuttgart thieme hyrtl j 1880 onomatologia anatomica geschichte und kritik der anatomischen sprache der gegenwart wien wilhelm braumüller k k hof und universitätsbuchhändler 1 2 schleifer s k ed 2011 corpus humanum the human body le corps humain der menschliche körper il corpo umano el cuerpo humano ciało człowieka människokroppen menneskekroppen τό ανθρώπινο σῶμα человек fkg 1 2 triepel h 1910 die anatomischen namen ihre ableitung und aussprache mit einem anhang biographische notizen dritte auflage wiesbaden verlag j f bergmann 1 2 kraus l a 1844 kritisch etymologisches medicinisches lexikon dritte auflage göttingen verlag der deuerlich und dieterichschen buchhandlung 1 2 liddell h g scott r 1940 a greek english lexicon revised and augmented throughout by sir henry stuart jones with the assistance of roderick mckenzie oxford clarendon press barker l w 1907 anatomical terminology with special reference to the bna with vocabularies in latin and english and illustrations philadelphia p blakiston s son co v t e muscles of the arm shoulder deltoid rotator cuff supraspinatus infraspinatus teres minor subscapularis teres major fascia deltoid fascia supraspinous fascia infraspinous fascia arm compartments anterior coracobrachialis biceps brachialis posterior triceps brachii anconeus articularis cubiti fascia axillary sheath axillary fascia brachial fascia intermuscular septa lateral medial other spaces quadrangular space triangular space triangular interval forearm compartments anterior superficial pronator teres palmaris longus flexor carpi radialis flexor carpi ulnaris flexor digitorum superficialis deep pronator quadratus flexor digitorum profundus flexor pollicis longus posterior superficial mobile wad brachioradialis extensor carpi radialis longus and brevis extensor digitorum extensor digiti minimi extensor carpi ulnaris deep supinator anatomical snuffbox abductor pollicis longus extensor pollicis brevis extensor pollicis longus extensor indicis fascia bicipital aponeurosis common tendons extensor flexor antebrachial fascia other cubital tunnel osborne s ligament hand lateral volar thenar opponens pollicis flexor pollicis brevis abductor pollicis brevis adductor pollicis medial volar hypothenar opponens digiti minimi flexor digiti minimi brevis abductor digiti minimi palmaris brevis intermediate lumbrical interossei dorsal palmar fascia posterior extensor retinaculum extensor expansion anterior flexor retinaculum palmar aponeurosis authority control databases terminologia anatomica retrieved from https en wikipedia org w index php title anconeus_muscle oldid 1345459781 categories elbow extensors muscles of the upper limb hidden categories articles with short description short description is different from wikidata this page was last edited on 26 march 2026 at 06 25 utc page was rendered with parsoid text is available under the creative commons attribution sharealike 4 0 license additional terms may apply by using this site you agree to the terms of use and privacy policy wikipedia is a registered trademark of the wikimedia foundation inc a non profit organization privacy policy about wikipedia disclaimers contact wikipedia legal safety contacts code of conduct developers statistics cookie statement mobile view search search toggle the table of contents anconeus muscle 27 languages add topic