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What Action Causes the Second Heart Sound Heard Through a Stethoscope

Question 7

Multiple Choice

What action causes the second heart sound heard through a stethoscope?


A) Opening of the atrioventricular valves
B) Opening of the semilunar valves
C) Closing of the atrioventricular valves
D) Closing of the semilunar valves

Correct Answer:

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