Which organ filters blood and forms urine as part of the urinary system?

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Multiple Choice

Which organ filters blood and forms urine as part of the urinary system?

The kidneys are the organs that filter blood and form urine. Blood flows through microscopic filtering units called nephrons, where waste is filtered out and the filtrate is processed along the renal tubules to become urine. This process regulates fluid volume, electrolyte balance, and acid-base status, making the kidneys the central components of the urinary system. The liver detoxifies and metabolizes substances but does not produce urine. The spleen helps filter blood for immune functions, not urine formation. The heart pumps blood to the body but does not filter blood into urine.

The kidneys are the organs that filter blood and form urine. Blood flows through microscopic filtering units called nephrons, where waste is filtered out and the filtrate is processed along the renal tubules to become urine. This process regulates fluid volume, electrolyte balance, and acid-base status, making the kidneys the central components of the urinary system. The liver detoxifies and metabolizes substances but does not produce urine. The spleen helps filter blood for immune functions, not urine formation. The heart pumps blood to the body but does not filter blood into urine.

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