vein 静脉 AAO:0010212 AEO:0000209 Any of the tubular branching vessels that carry blood from the capillaries toward the heart. BTO:0000234 CALOHA:TS-1108 EFO:0000816 EHDAA2:0003254 EMAPA:35906 EV:0100031 FMA:50723 GAID:492 MA:0000067 MAT:0000037 MESH:D014680 MIAA:0000037 OpenCyc:Mx4rvVjkWpwpEbGdrcN5Y29ycA Part of the circulatory system composed of blood vessels which carry blood from other organs, tissues, and cells to the heart.[AAO] TAO:0000082 TODO - check with MA - vein vs venous blood vessel 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] UBERON:0001638 UMLS:C0042449 VHOG:0001743 XAO:0000115 ZFA:0000082 galen:Vein uberon vascular element vena venae venous venous subtree venous tree organ part venous vessel 将其他器官、组织和细胞的血液输送到心脏的循环系统部分[AAO] 将血液从毛细血管带向心脏的任何管状分支血管。 待办事项 - 检查MA - 静脉与静脉血管 脊索动物和随后的脊椎动物的出现伴随着这种原始线性心脏的快速结构多样化：环状、单向循环、封闭的脉管系统和传导系统。[well established][VHOG] 腔 血管元件 静脉 静脉 静脉子树 静脉树器官部分 静脉血管 blood vessel 血管