part of part of channels_from embryo vein kidney subcardinal vein TBD: part of cardinal system? SCTID:308830006 UBERON:0006296 UMLS:C0231088 EHDAA:2631 EMAPA:16829 VHOG:0001336 A vein in the mammalian embryo or the adult of some lower vertebrates that is located on each side of the abdominal region ventromedial to the mesonephros and that in mammals participates in the formation of the inferior vena cava and the renal vein. NCIT:C34307