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Courses › KinFast Kin1AA3 › HeartCycle › HeartSounds › Adaptive Test

HeartSounds

Adaptive test — questions are selected based on your ability estimate. — Tag: FirstHeartSound

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What causes the first heart sound (S1 or "lubb")?

Turbulent blood flow caused by closure of the AV valves Turbulent blood flow caused by opening of the semilunar valves Turbulent blood flow caused by closure of the semilunar valves Turbulent blood flow caused by opening of the AV valves

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