What Do Kidneys Do?
Reviewed: Dr. Gromatzky
10. Maintain Electrolyte Balance
Electrolytes are electrically charged mineral components called ions, such as sodium and potassium. Ions help control the electric charge of cells, and the flow of water in their membranes. Therefore, electrolytes play an important role in maintaining homeostasis in the body. It is the kidneys function to ensure that the concentration of electrolytes remain constant in spite of the changes that may occur in your body.
For example, electrolytes may be lost through sweating when you are involved in physical activity. In this case, the kidneys will work to replace the lost electrolytes in order to keep electrolyte concentration in body fluids constant.
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