Select the correct statement about cardiac output.
A) If a semilunar valve were partially obstructed, the end systolic volume in the affected ventricle would be decreased.
B) Decreased venous return will result in increased end diastolic volume.
C) A slow heart rate increases end diastolic volume, stroke volume, and force of contraction.
D) Stroke volume increases if end diastolic volume decreases.

Question

Quizplus · Accepted Answer

A slow heart rate increases the time available for filling of the ventricles during diastole, leading to an increase in end diastolic volume and stroke volume. Additionally, the increased filling leads to a stronger contraction (increased force of contraction) which results in an increased cardiac output. None of the other choices are true.

Select the Correct Statement About Cardiac Output