Which function describes the urinary system?

Which function describes the urinary system?

• A. Maintains fluid balance
• B. Processes hormones
• C. Stores minerals
• D. Removes waste and maintains fluid balance

Answer: (D)

The urinary system is all about filtering the blood to remove waste while also controlling the body’s fluid and electrolyte balance. The kidneys, ureters, bladder, and related structures work together to form urine, excreting waste products like urea and creatinine and adjusting urine volume to keep the body's water content and mineral levels in balance. That combination—removing waste and maintaining fluid balance—best describes the system’s main role. Saying only one part, like just fluid balance, misses the waste-removal function; and the other options point to functions of different systems or misstate the urinary system’s purpose.

The urinary system is all about filtering the blood to remove waste while also controlling the body’s fluid and electrolyte balance. The kidneys, ureters, bladder, and related structures work together to form urine, excreting waste products like urea and creatinine and adjusting urine volume to keep the body's water content and mineral levels in balance. That combination—removing waste and maintaining fluid balance—best describes the system’s main role. Saying only one part, like just fluid balance, misses the waste-removal function; and the other options point to functions of different systems or misstate the urinary system’s purpose.