The bean-shaped kidneys are located at the bottom of your ribcage and towards the back of your body on both sides of the spine. They weigh a total of 300 grams.

The kidneys are protected by the ribs and the back muscles. The main function of the kidneys is to filter your blood in order to remove excess water and waste products, which are secreted from your kidneys in the form of urea. The kidney also functions to keep the composition of blood constant.

The urea is filtered through minute filtration units known as nephrons.
Nephrons filter water, salts and other substances out of your blood and then reabsorb some of them back into your blood. This keeps your blood composition constant. Excess water and waste products are secreted in the form of urine.

Liver and kidney interactions keep our vital signs stable.

The kidneys can be seriously damaged by drugs, alcohol, fungicides, and the hepatitis A virus. A person can survive with one kidney, but not without a liver.

The woman holds the kidney model in its correct place.