What Do Kidneys Do?
Reviewed: Dr. Gromatzky
3. Osmolarity Regulation
Osmolarity is a measure of how many particles are dissolved in a specific volume of fluid. Osmolarity is important within the body because cells cannot survive when the osmolarity of their surrounding differs from their own.
Kidneys maintain this balance by regulating the volume of water contained in the body. Depending on whether the water level is low or excessive, the kidneys control the amount lost through urine.
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