human_reference_atlas has part connected to blood vessel endothelial cell Homo sapiens anterior vena cava vein brachiocephalic vein http://upload.wikimedia.org/wikipedia/commons/9/9e/Gray1174.png EHDAA2:0000182 SCTID:181371003 innominate vein EHDAA:9868 UBERON:0003711 innominate veins uberon vena brachiocephalica innomiate vein FMA:4723 brachiocephalic vein Wikipedia:Brachiocephalic_vein NCIT:C32816 GAID:529 innominate vein AS UMLS:C0006095 The left and right brachiocephalic veins in the upper chest are formed by the union of each corresponding internal jugular vein and subclavian vein. This is at the level of the sternoclavicular joint. These great vessels merge to form the superior vena cava. The brachiocephalic veins are the major veins returning blood to the superior vena cava. venae anonyma MESH:D016121 brachiocephalic vein innominate trunk galen:BrachiocephalicVein brachiocephalic venous tree