Blood Filtration in the Kidney

[Continued from above] . . . balance the fluid levels of the body. They balance the body's acid/alkaline nature and the concentrations of salts, minerals and other materials. The blood is filtered, purified, cleansed and adjusted twenty-four hours every day. Hundreds of pints of blood flow through these organs daily, about one-fourth of the heart's output or approximately the body's entire volume. The blood circulates through the kidneys twenty times each hour for purification. About two and one-half pints of this flow becomes urine, although the amount largely depends on our consumption of food and drink, our physical activity and other factors.