Blood. Definition

Medical Definition: blood

Fluid circulating through the cardiovascular system. Is the intermediary between the outside and tissues, the blood will stop, on the one hand, digested food and oxygen from the air we breathe, and, secondly, that the metabolism catabolites generated and must be expelled the kidney and lungs. The two main components of blood are plasma and blood cells. The plasma represents 55% of the total blood volume. Its composition is: 93% water, 7% protein and> 1% inorganic salts. Cellular component corresponds to the remaining 45% and its components are erythrocytes, leukocytes and platelets (v.). The changes in blood continuously (at the level of glucose, amino acids, salts, etc..) Are quickly cleared, keeping very stable composition homeostasis View

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