part_of part of part of blood vessel endothelium blood vessel endothelium CALOHA:TS-2155 BTO:0000766 ZFA:0005257 NCIT:C53395 UBERON:0004638 uberon UMLS:C1706972 An endothelium that lines the blood vasculature. Other endothelia may line lymph vessels, the heart. EMAPA:35176 MA:0000709 TAO:0005257 cardiovascular system endothelium