human_reference_atlas has part cell of skeletal muscle Homo sapiens extensor carpi ulnaris muscle http://upload.wikimedia.org/wikipedia/commons/2/25/Extensor_carpi_ulnaris_muscle.png http://upload.wikimedia.org/wikipedia/commons/5/5f/Gray418.png FMA:38506 EMAPA:36190 extensor carpi ulnaris muscle Wikipedia:Extensor_carpi_ulnaris_muscle NCIT:C52914 AAO:0010281 MA:0002292 uberon SCTID:244992008 Note that we make the insertion relationship a taxon GCI until digit numbering issues are resolved extensor carpi ulnaris muscle AS musculus extensor carpi ulnaris Muscle of the forearm: It shares a common origin with two other muscles of the forearm. It arises from the lateral epicondyle of the humerus by two tendons: the first one is in common with the m. extensor digitorum communis longus, and the second one is broad and in common with the m. epicondylocubitalis. It is pinnately attached to the dorsal surface of the distal carpal 5-4-3.[AAO] UBERON:0001526 UMLS:C0224272 Extensor carpi ulnaris is a muscle located in the forearm that acts to extend and adduct the wrist. Being an extensor muscle, extensor carpi ulnaris is on the posterior side of the forearm. [WP]. ECU muscle extensor carpi ulnaris extrinsic extensor muscle of manus Muscle of posterior compartment of forearm