Did you know that kidneys are a pair of organs belonging to the urinary system located on either side at the back of the abdominal cavity. Each kidney is oval-shaped and nearly 12 centimeters long. The primary function of the kidneys is to filter blood.
All the blood in the body passes through the kidney several times a day to be filtered. They remove waste from the blood and regulate the balance of the body’s fluids and electrolytes. Urine is a byproduct of the kidney's work and is used to eliminate waste removed from the blood. Urine travels down tubes called ureters down to the bladder where it is kept until it can be eliminated from the body.
Blood is filtered through units in the kidneys called nephrons. Each kidney contains around a million of those microscopic filters. A person can survive with only one fully functioning kidney, and a kidney can lose up to 90% of its function before it causes any symptoms.