Stroke volume is determined by

Question

Quizplus · Accepted Answer

Stroke volume is the amount of blood ejected by each ventricle during a single contraction. It is determined by both the strength of ventricular contraction and the volume of blood in the ventricle at the end of diastole (end diastolic volume). Therefore, choice B (contraction strength and end diastolic volume) is the best answer. Choices A (cardiac rate and contraction strength), C (cardiac rate and cardiac output), D (cardiac rate and end diastolic volume), and E (cardiac output and end diastolic volume) are not correct because they do not include both factors that determine stroke volume.

Stroke Volume Is Determined by