The excretory system is responsible for removing waste products from the body. It helps maintain the body's balance of water, salts, and other substances. Key organs in this system include the kidneys, ureters, bladder, and urethra. The kidneys filter blood to produce urine, which is then transported through the ureters to the bladder for storage. When the bladder is full, urine is expelled from the body through the urethra. This process is essential for preventing the buildup of harmful substances and maintaining overall health. Proper functioning of the excretory system is crucial for regulating blood pressure and electrolyte levels.