Kidney
One of the main functions of the kidneys is to filter the waste out of the blood. Your blood delivers nutrients to your body. Chemical reactions occur in the cells of your body to break down the nutrients. Some of the waste is the result of these chemical reactions, some is just stuff your body doesn't need because it already has enough. The waste has to go somewhere, and this is where the kidneys come in. First, blood is carried into the kidneys by the renal artery (anything in the body related to the kidneys is called "renal"). The kidneys filter that blood as many as 400 times a day! More than 1 million tiny filters inside the kidneys remove the waste. These filters, called nephrons, are so small you can see them only with a high-powered microscope. The waste that is collected combines with water (which is also filtered out of the kidneys) to make urine. Then it goes through the ureter to the bladder, where it is stored for removal. Do you know some other important functions of the kidney.? Drop down your comments...
