| The Urinary System | ||||||
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The urinary system consists of the organs (two kidneys and the bladder),
muscles (two sphincters), tubes (two ureters and the urethra), and
nerves that work together to create urine and store it until it is
carried out of the body. After filtering wastes out of the blood, the kidneys remove these wastes from the body by producing urine. Urine is carried from the kidneys to the bladder by the ureters, which are essentially tubes. Urine collects in the bladder and when that's full, |
Urine is a mixture of 95% water and 5% wastes from the metabolism of proteins, plus urea (which contains nitrogen), uric acid, salts and other substances the body needs to get rid of. When the kidneys work properly, they prevent the body from accumulating too much waste and too much water. The kidneys have an important role in regulation of blood pressure, minerals in the body, red blood cell production, and keeping bones strong. |
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