Kidneys are fist-sized, bean-shaped organs that are located just below the ribcage in the back. Their main function is to filter the blood, remove waste from the body, and produce urine to remove waste and excess water. Kidneys have approximately one million functioning units called nephrons. Nephrons contain small blood vessels called glomerulus that connect to tubules to filter the blood and fluids.  Kidneys:

• Filters waste from the body (blood)
• Produces urine
• Contributes to blood pressure regulation
• Electrolyte management
• Fluid management