human_reference_atlas Homo sapiens proximal carpal bone ulnare http://upload.wikimedia.org/wikipedia/commons/5/50/Carpus.png ulnare cuneiform of hand triangular Wikipedia:Triquetral NCIT:C12858 ulnar carpal bone The postaxial bone of the proximal carpal region. Found in close approximation to the ulna, often in articulation[PHENOSCAPE:ad]. AAO:0000845 FMA:23715 uberon One of two element that constitute the basal row of carpals. It articulates with the ulna, radius, radiale, centrale (element Y), and carpal 5(4). This element originates from one condensation center or the fusion of two elements (ulnare and intermedium). Occasionally it may fuse to carpal 5(4), the radiale, or other elements.[AAO] triangular bone os triquetrum this bone is termed the triquetral bone in some mammalian taxa, notably humans SCTID:181965000 ulnare MA:0001347 triquetral UMLS:C0223739 UBERON:0002445 cuneiform bone of hand AS galen:Triquetral EMAPA:36167 triquetral bone os ulnare triquetrum cuneiform bone of manus manus bone