innervated by innervated_by has muscle origin has muscle origin has muscle insertion has muscle insertion Homo sapiens radial nerve anconeus muscle http://upload.wikimedia.org/wikipedia/commons/7/77/Gray1232.png FMA:37704 Some consider anconeus to be a continuation of the triceps brachii muscle. Some sources consider it to be part of the posterior compartment of the arm, while others consider it part of the posterior compartment of the forearm. m. anconeus anconeus EMAPA:36181 UBERON:0002989 musculus anconaeus aconeus A small muscle on the posterior aspect of the elbow joint. SCTID:244993003 musculus anconeus Wikipedia:Anconeus_muscle AAO:0010714 forelimb stylopod muscle ectepicondyle of humerus olecranon