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The first heart sound is produced by closure of?

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Question ID #11582

Correct Answer: B. AV valves

Question: The first heart sound is produced by closure of?

A. Semilunar valves

B. AV valves

C. Pulmonary valve

D. Aortic valve

Correct Answer: B. AV valves

The first heart sound is produced by closure of? - MCQ Explanation

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Correct answer: B. AV valves