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Dialysis cleans the blood by

Correct answer: D. Removing waste products and excess fluid from blood

  • A. An artificial kidney
  • B. Filtering it within abdomen
  • C. Both A and B
  • D. Removing waste products and excess fluid from blood

Explanation

Dialysis serves the function of the kidneys when they fail by removing waste products, excess salts, and excess water from the blood. The correct answer is 'Removing waste products and excess fluid from blood' because it accurately describes the primary purpose of dialysis. Option A is incorrect because while dialysis functions similarly to an artificial kidney, it does not specify the removal of substances. Option B is incorrect as it describes a method (peritoneal dialysis) without addressing what is filtered. Option C is incorrect because it combines options that do not directly answer the question about what is removed from the blood.

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About Homeostasis

Homeostasis maintains a stable internal environment through the kidney and urinary system, thermoregulation and excretion. The kidney topics include filtration, selective reabsorption, urine formation and water balance, while thermoregulation involves sweating, vasodilation, vasoconstriction and hormonal control; excretion is different from egestion, which removes undigested food.

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