Kidney Filtration: How Much Blood Do Your Kidneys Filter?

The kidneys are two bean-shaped organs located near the middle of the back, just below the rib cage. They are responsible for filtering waste products and excess water from the blood, and regulating the body's electrolyte balance.

Each kidney contains millions of tiny filters called nephrons. Each nephron consists of a glomerulus, which is a cluster of tiny blood vessels, and a tubule, which is a small tube that leads away from the glomerulus.

The glomerulus filters blood plasma, which is the liquid part of blood, from the blood cells. The filtered plasma then flows through the tubules, where it is further processed. The tubules reabsorb essential substances, such as glucose, water, and electrolytes, back into the blood. The remaining waste products are excreted in the urine.

The kidneys filter about 200 liters (53 gallons) of blood per day. This amounts to about 1 liter (1 quart) of blood per minute.