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

Question

Quizplus · Accepted Answer

End-systolic volume is the volume of blood remaining in the ventricle at the end of systole. The stroke volume can be calculated by subtracting the end-systolic volume from the end-diastolic volume.

Answer: B
 End-diastolic volume is the volume of blood in the ventricle at the end of diastole, just prior to contraction. The stroke volume can be calculated by subtracting the end-systolic volume from the end-diastolic volume.

Answer: A
 Stroke volume is the amount of blood ejected from the ventricle with each contraction. It can be calculated by subtracting the end-systolic volume from the end-diastolic volume.

Answer: C
 Cardiac output is the total volume of blood pumped by the heart in one minute. It is the product of stroke volume and heart rate.

Answer: D
 Heart rate is the number of times the heart beats per minute. It is a factor that affects cardiac output, along with stroke volume.

Answer: F
 Sympathetic activity is a factor that can increase heart rate and stroke volume, thereby increasing cardiac output.

Match the Terms, Labelled A