18. The Heart

Cardiac Cycle

객관식
A doctor puts his stethoscope on a patient's chest over the location of the heart and hears an abnormal swishing sound. Which of the following conditions is the best diagnosis for the patient's condition?
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객관식
The first heart sound represents which portion of the cardiac cycle?
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객관식
What happens after the ventricles of the heart complete their contraction?
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객관식
Which law states that stroke volume is determined by the end-diastolic volume?
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객관식
Which of the following correctly lists the phases of the cardiac cycle in order, starting immediately after ventricular filling?
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객관식
Which of the following statements about cardiac output is correct?
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객관식
During which phase of the cardiac cycle is atrial pressure greater than ventricular pressure?
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객관식
Which of the following is the correct sequence of events regarding the cardiac cycle?
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객관식
Which two values are required to calculate cardiac output (CO) for a ventricle?
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객관식
Which of the following does not occur during ventricular systole?
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객관식
At what point in the cardiac cycle does the atrioventricular (AV) valve open?
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객관식
During the cardiac cycle, which mechanical event immediately follows atrial repolarization?
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객관식
Which factor accounts for the movement of the heart valves during the cardiac cycle?
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객관식
If the pressure in the ventricles is higher than in the atria, which of the following statements must be true?
I. The atrioventricular valves are closed.
II. The semilunar valves are open.
III. The ventricles are in systole.
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객관식
At what point in the cardiac cycle does the semilunar valve open?
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