Composition of the blood Centrifuged Blood Plasma:水,低分子物质(电解 质、小分子有机化合 物),蛋白质,气体 Blood cells: Erythrocyte(red blood cell) Red blood cells Leukocyte(white blood cell Platelet(thrombocyte)Composition of the blood Blood: Plasma: 水，低分子物质(电解 质、小分子有机化合 物)，蛋白质，气体 Blood cells: Erythrocyte (red blood cell) Leukocyte (white blood cell) Platelet (thrombocyte)