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A person normally has two kidneys located at either side of the spine behind the abdominal organs and below the rib cage. They are bean shaped and weigh about one-third of a pound. When working properly, your kidneys perform five main functions:

Clean waste material from the blood

Retain or excrete salt and water

Regulate blood pressure

Stimulate bone marrow to make red blood cells

Control the amount of calcium and phosphorous absorbed and excreted

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βˆ™ 13y ago
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βˆ™ 6mo ago

Kidneys are bean-shaped organs responsible for filtering waste from the blood to create urine, maintain fluid balance, regulate electrolytes, and produce hormones that help control blood pressure and red blood cell production.

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Q: What do a kidnes do?
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