How do the kidneys work?
The kidney is not one large filter. Each kidney is made up of about a million filtering units called nephrons. Each nephron filters a small amount of blood. The nephron…
Why are the kidneys important?
The kidneys are important because they keep the composition, or makeup, of the blood stable, which lets the body function. Theyprevent the buildup of wastes and extra fluid in the…
What are the kidneys and what do they do?
The kidneys are two bean-shaped organs, each about the size of a fist. They are located just below the rib cage, one on each side of the spine. Every day,…