Which of the Following Statements About the Cardiac Cycle Is

question 78

Multiple Choice

Which of the following statements about the cardiac cycle is TRUE?

• A)The duration of systole is greater than that of diastole in a subject at rest.
• B)During isovolumetric ventricular relaxation,blood flows from the atria into the ventricles.
• C)Closure of the atrioventricular valves occurs at the beginning of ventricular systole.
• D)The QRS complex occurs at approximately the same time as the closure of the semilunar valves.
• E)The first valves to go from closed to open after the atrial kick are the atrioventricular valves.

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