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The excretory system is responsible for disposing of the body's waste. This system includes organs such as the kidneys, ureters, bladder, and urethra, which work together to filter out waste products from the bloodstream and excrete them in the form of urine. By regulating the balance of fluids and electrolytes, the excretory system plays a crucial role in maintaining the body’s homeostasis and ensuring that harmful substances are eliminated efficiently.

While the digestive system processes food and excretes solid waste, and the nervous and endocrine systems control various bodily functions, the specific task of waste disposal through urine and other forms of excretion is the primary function of the excretory system.