Concerning Heart Sounds, Which of the Following Is Correct

question 1

Multiple Choice

Concerning heart sounds, which of the following is correct?

• A) The first heart sound occurs at the beginning of ventricular systole.
• B) The second heart sound is heard when the AV valves are closing.
• C) The first heart sound is the sound of the semilunar valves closing.
• D) The second heart sound occurs when blood flows into the superior vena cava.
• E) The first heart sound occurs at the beginning of ventricular diastole.

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