National Dental Examining Board of Canada (NDEB) Practice Exam

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Prepare for the National Dental Examining Board of Canada (NDEB) Test. Study with flashcards and multiple choice questions, each question offers hints and detailed explanations. Achieve success in your exam!

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Vitamin D is mainly activated in which organ?

  1. Skin

  2. Kidney

  3. Liver

  4. Heart

The correct answer is: Liver

Vitamin D is primarily activated in the liver, not the skin, kidney, or heart. The skin produces a precursor form of vitamin D when exposed to UV radiation, but it is ultimately activated in the liver. The kidney is responsible for converting vitamin D into its active form, but it does not activate vitamin D itself. The heart does not play a role in activating vitamin D. Therefore, the correct answer is C, the liver.

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