Which chamber is the immediate precursor to the right ventricle in the flow of blood from the body?

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Multiple Choice

Which chamber is the immediate precursor to the right ventricle in the flow of blood from the body?

Explanation:
Blood returning from the body enters the heart into the right atrium, which then passes the blood through the tricuspid valve into the right ventricle. So the right atrium is the chamber immediately upstream of the right ventricle in this flow. The left atrium handles oxygenated blood from the lungs and feeds the left ventricle, which is part of the other circulation loop, not the path to the right ventricle.

Blood returning from the body enters the heart into the right atrium, which then passes the blood through the tricuspid valve into the right ventricle. So the right atrium is the chamber immediately upstream of the right ventricle in this flow. The left atrium handles oxygenated blood from the lungs and feeds the left ventricle, which is part of the other circulation loop, not the path to the right ventricle.

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