The Heart Sounds "Lub" and "Dup" Result from ________

question 11

Multiple Choice

The heart sounds "lub" and "dup" result from ________.

• A) opening of the heart valves
• B) firing of the nodes of the intrinsic conduction system
• C) blood rushing through the chambers
• D) closure of heart valves
• E) contraction of the heart

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Comfort Measures

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