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      Question

       CO2 rich blood in lungs comes from

      ?
      A different parts of body Correct Answer Incorrect Answer
      B right ventricle Correct Answer Incorrect Answer
      C right atrium Correct Answer Incorrect Answer
      D left ventricle Correct Answer Incorrect Answer

      Solution

      The right ventricle (RV) pumps oxygen-poor (CO2 rich) blood through the pulmonary valve (PV) into the main pulmonary artery (MPA). From there, the blood flows through the right and left pulmonary arteries into the lungs.

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