18. The Heart

Cardiac Cycle

Multiple Choice
The QRS complex on the ECG represents which of the following events in the cardiac cycle?
203
views
Multiple Choice
Which of the following are considered events of the cardiac cycle?
597
views
Multiple Choice
Which events occur during the atrial contraction and ventricular filling phase of the cardiac cycle?
586
views
Multiple Choice
The shutting of the semilunar valves occurs during which phase of the cardiac cycle?
617
views
Multiple Choice
During which phase of the cardiac cycle is the heart filled with blood?
560
views
Multiple Choice
Which of the following statements about the cardiac cycle is true?
537
views
Multiple Choice
Which event of the cardiac cycle occurs when systolic blood pressure is measured?
450
views
Multiple Choice
In the cardiac cycle, the opening and closing of the heart valves is primarily caused by which factor?
53
views
Multiple Choice
Which of the following is not true for ventricular systole?
572
views
Multiple Choice
At what point during the cardiac cycle does the atrioventricular (AV) valve close?
596
views
Multiple Choice
During which following phase (or phases) of the cardiac cycle is the blood volume in the ventricles constant?
1450
views
13
rank
Multiple Choice
In the cardiac cycle, when is the S2 heart sound heard?
42
views
Multiple Choice
During the isovolumetric relaxation phase of the cardiac cycle, which of the following occurs?
181
views
Multiple Choice
Which is the correct sequence of events in the cardiac cycle?
636
views
1
rank
Multiple Choice
The second heart sound (the 'dup' of 'lub-dup') is caused by the __________.
2370
views
4
rank