This sound is produced during the closure of the semilunar valves.
Correct Answer: dupp
Description: B: The second heart sound can be represented by dupp. It occurs at the beginning of ventricular diastole and results from the closure of the semilunar valves.
A: The first heart sound can be represented by the syllable lubb. It occurs at the beginning of ventricular systole and results from closure of the AV valves.
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