Complete the analogy: CARDIOLOGY is to HEART as NEPHROLOGY is to

  • A. nerves
  • B. kidneys
  • C. lungs
  • D. liver

Explanation

Each branch of medicine is paired with the organ it studies, and the Greek nephros means kidney. Nerves belong to neurology, lungs to pulmonology and liver to hepatology, all of which are offered to test the whole set. These roots recur throughout medical vocabulary.

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