has member has member anatomical entity anatomical entity artery arterial system SCTID:362030008 EHDAA:396 MA:0002719 EHDAA2:0000143 VHOG:0000273 The appearance of Chordata and subsequently the vertebrates is accompanied by a rapid structural diversification of this primitive linear heart: looping, unidirectional circulation, an enclosed vasculature, and the conduction system.[well established][VHOG] EMAPA:16371 The part of the cardiovascular system consisting of all arteries. BTO:0004690 uberon EMAPA:16201 UBERON:0004572 vascular system