Changes

'''Kidneys''' are bean-shaped organs, each about the size of a fist. They are located near the middle of the back, just below the rib cage. The kidneys are sophisticated reprocessing machines. Every day, the kidneys process about 200 quarts of [[blood]] to sift out about 2 quarts of waste products and extra water. The waste and extra water become [[urine]], which flows to the [[bladder]] through tubes called [[ureter]]s.<ref>[http://kidney.niddk.nih.gov/kudiseases/pubs/yourkidneys/ "Your Kidneys"]</ref>

'''Kidneys''' are bean-shaped organs, each about the size of a fist. They are located near the middle of the back, just below the rib cage. The kidneys are sophisticated reprocessing machines. Every day, the kidneys process about 200 quarts of [[blood]] to sift out about 2 quarts of waste products and extra water. The waste and extra water become [[urine]], which flows to the [[bladder]] through tubes called [[ureter]]s.<ref>[http://kidney.niddk.nih.gov/kudiseases/pubs/yourkidneys/ "Your Kidneys and How They Work"]</ref>

==References==

==References==