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The Renal System: The Urinary System

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The Renal System: The Urinary System
The renal system is also known as the urinary system. It consists of the kidneys, ureters, bladder, and the urethra. The function of the renal system is to remove liquid waste from the blood and keep salts and other substances in the blood. The kidneys remove urea from blood by filtering. Besides filtering and eliminating wastes, the system also maintains homeostasis of water, ions, pH, acid and blood pressure. The renal system is a major homeostatic system because it maintains electrolyte balance, acid-base, and fluid balance; excrete nitrogenous wastes.
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