MCAT Question A Day - 8/9/14 - Answer!
Which chambers of the heart pump oxygenated blood?
A. The right and left atria
B. The right and left ventricles
C. The right atria and the left ventricle
D. The left atria and the left ventricle
D is correct. Oxygenated blood returning from the lungs feeds into the heart at the left atrium. From there, it flows into the left ventricle, which pumps it to the systemic circulation. The right atria and the right ventricle pump deoxygenated blood to the lungs.
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D is correct. Oxygenated blood returning from the lungs feeds into the heart at the left atrium. From there, it flows into the left ventricle, which pumps it to the systemic circulation. The right atria and the right ventricle pump deoxygenated blood to the lungs.
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