McGraw-Hill Online Learning Center Test<BLURT>

McGraw-Hill Online Learning Center Test


1. Review the animation and answer the following questions.

Cardiac cycle sounds are produced by the

A. closing of the heart valves.
B. opening of the heart valves.
C. movement of blood through the atrioventricular valves.
D. movement of blood through the pulmonary valve.


2. The "lub" sound is caused by the closing of the A. pulmonary valve.
B. semilunar valves.
C. bicuspid and tricuspid valves.
D. aortic valve.
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