Which system is responsible for the removal of waste products in the body?

The renal system, also known as the urinary system, plays a crucial role in the removal of waste products from the body. It includes the kidneys, ureters, bladder, and urethra. The primary function of the kidneys is to filter blood, removing waste materials and excess substances, which are then excreted as urine. This process helps maintain homeostasis by regulating electrolyte balance, fluid levels, blood pressure, and acid-base balance.

While all the other systems listed contribute to bodily functions, they do not directly manage waste removal in the same way. For instance, the cardiovascular system is responsible for transporting blood and nutrients throughout the body, the digestive system processes food and eliminates solid waste, and the nervous system coordinates body functions but does not remove waste products. Thus, the renal system is distinctly responsible for waste elimination.