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Physiology Quiz -
Cardiac Cycle - Part 2
The cardiac cycle refers to the sequence of events that takes place from one heart beat to the next. A full understanding of the cardiac cycle requires thorough examination of atrial systole, atrial diastole, ventricular systole, ventricular diastole, atrial and ventricular volume changes during the cycle, electrical events (depolarization and repolarization) of atria and ventricular myocytes, heart sounds associated with turbulent blood flow caused by the closure of semilunar valves, as well as hydrostatic blood pressure changes within the atria, ventricles, and the aorta. Test you basic understanding of the cardiac cycle by taking this simple quiz.
(1)   During the isovolumic contraction (also referred to as isovolumetric contraction) phase of the cardiac cycle:
(2)   During the isovolumic relaxation (also referred to isovolumetric relaxation) phase of the cardiac cycle:
(3)   The cardiac events that occur from the beginning of one heart beat to the beginning of the next heart beat are called the cardiac cycle. During the cardiac cycle:
(4)   The cardiac events that occur from the beginning of one heart beat to the beginning of the next heart beat are called the cardiac cycle. Which of the following is/are true?
(5)   During the cardiac cycle, the contraction phase is referred to as __________.



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Posted: Monday, March 21, 2016