noun
vascular system; blood circulatory system
Anatomical term referring to the network of blood vessels (arteries, veins, capillaries). Used in medical and biological contexts.
血管系は全身に酸素を運ぶ重要な器官です。
The vascular system is an important organ that carries oxygen throughout the body.
この図はヒトの血管
This diagram shows the human vascular system.
Compound of 血管 (blood vessel) + 系 (system).