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      Question

      Which of the following statements are true regarding

      human blood circulation? 1. The heart pumps oxygenated blood to the body through the pulmonary artery. 2. The systemic circulation carries blood from the heart to the body and back. 3. The left side of the heart pumps deoxygenated blood to the lungs. 4. The right side of the heart pumps oxygenated blood to the lungs. Select the correct answer using the code below:
      A 1, 2 Correct Answer Incorrect Answer
      B 2, 3 Correct Answer Incorrect Answer
      C 1, 4 Correct Answer Incorrect Answer
      D 2, 4 Correct Answer Incorrect Answer

      Solution

      тАв Statement 1 is incorrect because the pulmonary artery carries deoxygenated blood from the heart to the lungs, not oxygenated blood. тАв Statement 2 is correct as systemic circulation carries blood from the heart to the body and back. тАв Statement 3 is correct because the left side of the heart pumps oxygenated blood to the body, while the right side pumps deoxygenated blood to the lungs. тАв Statement 4 is incorrect because the right side of the heart pumps deoxygenated blood to the lungs, not oxygenated.

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