blood volume

Blood volume is the volume of blood (both red blood cells and plasma) in a person's circulatory system. A typical adult male human has a blood volume of some five litres [1]. Blood volume is regulated by the kidneys.Blood volume (BV) can be calculated given the hematocrit (HC; the fraction of blood that is red blood cells) and plasma volume (PV):
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blood warmer 血液保暖器

‎ حَجْمُ الدَّم‎

the amount of blood circulating throughout the body in the vascular system. Normal adult blood volume is about 5 liters. Blood volume must be maintained to ensure the proper functioning of the heart, kidneys and other organs.