Multiple choice general knowledge

Blood is filtered by which organ?

  1. Lungs

  2. Kidney

  3. Liver

  4. Intestine
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Kidneys are the primary blood filtration organs, removing waste products and excess substances through approximately 1 million nephrons per kidney. Blood enters through renal arteries and is filtered as it passes through glomeruli. While the liver detoxifies blood, the kidneys perform systematic filtration to produce urine.

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