Multiple Choice
Using a stethoscope, you listen to a beating heart and hear "lub-dup, lub-dup." These sounds are created by
A) muscles in the left ventricle.
B) blood flowing through the aorta.
C) blood pressure differentials from chamber to chamber.
D) blood recoiling against the closed valves.
Correct Answer:
Verified
Correct Answer:
Verified
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