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Sep 19, 2023 · What the Kidneys Do . Your kidneys are silent workhorses, toiling 24/7 to clean your blood of impurities and toxins that build up from the body's metabolism. This waste fluid, which we know better as urine, is then excreted. However, the kidneys’ role extends to well beyond just “making urine.”
The system contains two kidneys, which control the electrolyte composition of the blood and eliminate dissolved waste products and excess amounts of other substances from the blood; the latter substances are excreted in the urine, which passes from the kidneys to the bladder by way of two thin muscular tubes called the ureters.
Kidneys are important organs that filter our blood and produce urine to maintain balance (homeostasis) in our body. Blood enters the kidneys through renal arteries and exits through renal veins. The nephron, the smallest functional unit of the kidney, handles filtration and collection.
