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The Importance of Kidneys

The major function of the kidneys is to remove waste products and excess fluid from the body. These waste products and excess fluids are removed through the urine. The production of urine involves highly complex steps of excretion and re-absorption. This process is necessary to maintain a stable balance of body chemicals.

The kidneys regulate the body’s salt, potassium and acid content. They also produce hormones that affect the function of other organs. A hormone produced by the kidneys stimulates red blood cell production. Other hormones produced by the kidneys help regulate blood pressure and calcium metabolism.

The kidneys are powerful organs that perform the following functions:

  • remove waste products from the body
  • remove drugs from the body
  • balance the body’s fluids
  • release hormones that regulate blood pressure
  • produce an active form of vitamin D that promotes strong, healthy bones
  • control the production of red blood cells

Below you will find more information about the kidneys and the vital role they play in keeping your body functioning.

There are two kidneys, each about the size of a fist, located on either side of the spine at the lowest level of the rib cage. Each kidney contains up to a million functioning units called nephrons. A nephron consists of a filtering unit of tiny blood vessels called a glomerulus attached to a tubule. When blood enters the glomerulus, it is filtered and the remaining fluid then passes along the tubule. In the tubule, chemicals and water are either added to or removed from this filtered fluid according to the body’s needs.  The final product being the urine, is what we excrete.

The kidneys filter and return to the bloodstream about 200 quarts of fluid every 24 hours. About two quarts are removed from the body in the form of urine, and about 198 quarts are recovered. The urine we excrete has been stored in the bladder for anywhere from 1 to 8 hours.

The more we realize how crucial the kidneys are to our body’s overall performance, the more we will appreciate keeping them healthy.

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