Match the terms, labelled a. through f., with the descriptions. (Options may be used more than once or not at all.)
-The two main determinants of cardiac output are stroke volume and _____.
A)stroke volume
B)end-diastolic volume
C)cardiac output
D)heart rate
E)end-systolic volume
F)sympathetic activity

Question

Quizplus · Accepted Answer

Heart rate is one of the two main determinants of cardiac output, along with stroke volume.

Answer: A 
 Stroke volume is one of the two main determinants of cardiac output, along with heart rate.

Answer: B 
 End-diastolic volume is the volume of blood in the ventricles at the end of diastole, which affects stroke volume and cardiac output.

Answer: C 
 Cardiac output is the amount of blood pumped by the heart per minute and is determined by stroke volume and heart rate.

Answer: E 
 End-systolic volume is the volume of blood remaining in the ventricles at the end of systole, which affects stroke volume and cardiac output.

Answer: F 
 Sympathetic activity can increase heart rate and stroke volume, which in turn increases cardiac output.

Match the Terms, Labelled A