What is the function of the kidneys?

The main function of the kidneys is excretory.
In one day, up to two thousand liters of blood pass through the kidneys of a person and 1.5-2 liters of urine are formed. End products of metabolism, foreign and toxic compounds, many drugs are excreted from the body through the kidneys. However, in addition to the excretory function, the kidneys are involved in the metabolism of carbohydrates and proteins, in the formation of biologically active substances that play an important role in the regulation of blood pressure. The kidneys also affect the rate of formation of certain blood cells. Thus, the kidneys, in addition to excretory, perform regulatory, hematopoietic and some other functions.

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