Heart rate and stroke volume determine
A)hematocrit.
B)total blood volume.
C)cardiac output.
D)the size of the heart valves.

Question

Quizplus · Accepted Answer

Cardiac output is determined by the heart rate (how many times the heart beats per minute) and the stroke volume (how much blood is pumped out of the heart with each beat). Cardiac output is the amount of blood pumped out of the heart per minute, so it is an important measure of heart function. Hematocrit and total blood volume are not directly determined by heart rate and stroke volume. The size of the heart valves is determined by anatomy rather than heart function.

Heart Rate and Stroke Volume Determine