Contribute to a proper pH balance, vital to normal chemical reactions throughout the body. Reabsorb 90 percent of the filtered materials as a conservation measure. Remove blood toxins and unstorable excess nutrients or water. The kidneys recycle about 45 gallons of blood every day. Inside the kidneys are 2.4 million nephron filters requiring 50 miles of tiny capillaries and tubules.
Micturition is the medical term for emptying the bladder.
Twenty-five percent of your blood is being filtered in your kidneys at all times.