Which of the following is the same as end-diastolic volume?
A)Stroke volume
B)Cardiac output
C)Preload
D)Cardiac reserve

Question

Quizplus · Accepted Answer

End-diastolic volume and preload refer to the amount of blood in the ventricles at the end of diastole, just before ventricular contraction. This volume stretches the ventricular muscle fibers and prepares them for the next systolic contraction. Therefore, preload is the same as end-diastolic volume. Stroke volume is the amount of blood ejected from the heart with each contraction, while cardiac output is the total amount of blood ejected by the heart per minute. Cardiac reserve refers to the ability of the heart to increase its output in response to increased demand or stress.

Which of the Following Is the Same as End-Diastolic Volume