Phlebotomy Technician Practice Exam (NCPT/CPT)

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Where are platelets formed?

  1. In bone marrow

  2. In the spleen

  3. In the liver

  4. In lymph nodes

The correct answer is: In bone marrow

Platelets are formed in the bone marrow. Platelets are tiny blood cells that are important for blood clotting. The bone marrow is the soft, spongy tissue found inside bones where blood cells are produced. The spleen, liver, and lymph nodes do not play a role in the formation of platelets.

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