18. The Heart

Cardiac Cycle

Multiple Choice
During which phase of the cardiac cycle is the heart filled with blood?
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Multiple Choice
Which of the following statements about the cardiac cycle is true?
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Multiple Choice
Which event of the cardiac cycle occurs when systolic blood pressure is measured?
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Multiple Choice
In the cardiac cycle, the opening and closing of the heart valves is primarily caused by which factor?
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Multiple Choice
Which of the following is not true for ventricular systole?
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Multiple Choice
At what point during the cardiac cycle does the atrioventricular (AV) valve close?
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Multiple Choice
In the cardiac cycle, when is the S2 heart sound heard?
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Multiple Choice
During the isovolumetric relaxation phase of the cardiac cycle, which of the following occurs?
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Textbook Question
Define cardiac cycle, and follow the events of one cycle.
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Multiple Choice
Which is the correct sequence of events in the cardiac cycle?
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Multiple Choice
At what point in the cardiac cycle does the semilunar valve close?
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Multiple Choice
When the pressure inside the ventricle causes the atrioventricular valve to close and the semilunar valve to open, which statement about the heart is true?
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Multiple Choice
For the atrioventricular valves to be open, the pressure in the ventricles must be:
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Multiple Choice
What event immediately follows the closure of the atrioventricular valves and coincides with the onset of ventricular systole?
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Multiple Choice
During which following phase (or phases) of the cardiac cycle is the blood volume in the ventricles constant?
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