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Kidneys

Kidneys

Picture of the kidneys: male

The kidneys are organs located on either side of the spine, at the small of the back. Kidneys filter the blood and help balance water, salt, and mineral levels in the blood. They also produce hormones that help regulate blood pressure and blood supply.

Waste from the kidneys is carried out of the body in urine. Urine flows through tubes (ureters) to the bladder, where it is stored until a person is ready to urinate. The waste and urine then leave the bladder to exit the body through a tube called the urethra.

By Healthwise Staff
Primary Medical Reviewer E. Gregory Thompson, MD - Internal Medicine
Specialist Medical Reviewer Dennis L. Stevens, MD, PhD - Internal Medicine, Infectious Disease
Last Revised February 23, 2012

Last Revised: February 23, 2012

Author: Healthwise Staff

Medical Review: E. Gregory Thompson, MD - Internal Medicine & Dennis L. Stevens, MD, PhD - Internal Medicine, Infectious Disease

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