Which of the Following Statements About S₁ During Cardiac Auscultation

question 21

Multiple Choice

Which of the following statements about S₁ during cardiac auscultation is true?

• A)S₁ is louder than S₂ at the base.
• B)S₁ indicates the beginning of diastole.
• C)S₁ coincides with the carotid artery pulse.
• D)S₁ is caused by closure of the semilunar valves.

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