The heart pumps blood through the arteries, capillaries and veins to provide oxygen and nutrients to every cell of the body.
2
当血液流经动脉和静脉时，10%的液体和一些重要的蛋白质将通过毛细血管渗出，储存在机体的组织间隙中。
As blood moves through the arteries and veins, 10% of the fluid filtered by the capillaries, along with vital proteins, becomes trapped in the tissues of the body.
3
血管球成为血流从动脉流至静脉的旁路，避免通过毛细血管产生氧气和热量交换。
These serve to shunt blood from the arterial to the venous side of the vascular system, thereby avoiding the capillaries, where exchange of oxygen and heat takes place.
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