innervated by innervated_by has muscle origin has muscle origin has muscle insertion has muscle insertion Homo sapiens radial nerve extensor carpi radialis brevis muscle extensor carpi radialis brevis musculus extensor carpi radialis brevis UMLS:C0224267 NCIT:C52911 Wikipedia:Extensor_carpi_radialis_brevis_muscle UBERON:0001525 SCTID:244991001 FMA:38497 EMAPA:36188 The Extensor carpi radialis brevis is shorter and thicker than the extensor carpi radialis longus. The longus muscle can be found above the distal end of the Extensor carpi radialis brevis. [WP,unvetted]. MA:0002290 metacarpal bone of digit 3 ectepicondyle of humerus extensor carpi radialis muscle