Backflow of blood into the atria is characteristic of which valve problem?

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Multiple Choice

Backflow of blood into the atria is characteristic of which valve problem?

Backflow into the atria occurs when a heart valve doesn’t close properly, allowing blood to leak backward from the ventricle into the atrium during contraction. This problem is called regurgitation (insufficiency). It directly describes the backward flow that the question highlights. Stenosis, by contrast, narrows the valve opening and reduces forward flow rather than causing backflow. Atresia is the absence of a normal opening altogether, not a closing problem. Prolapse involves the valve leaflets bulging into the atrium, which can lead to regurgitation, but the scenario described—backward flow into the atrium—best matches regurgitation itself.

Backflow into the atria occurs when a heart valve doesn’t close properly, allowing blood to leak backward from the ventricle into the atrium during contraction. This problem is called regurgitation (insufficiency). It directly describes the backward flow that the question highlights.

Stenosis, by contrast, narrows the valve opening and reduces forward flow rather than causing backflow. Atresia is the absence of a normal opening altogether, not a closing problem. Prolapse involves the valve leaflets bulging into the atrium, which can lead to regurgitation, but the scenario described—backward flow into the atrium—best matches regurgitation itself.

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