Question

The volume of blood discharged from the ventricle with each heartbeat is known as ________.

Select one:
a. cardiac cycle
b. cardiac output
c. minute cardiac volume
d. stroke volume

Answer 1

The volume of blood discharged from the ventricle with each heartbeat is known as stroke volume, which is typically in the range of 70-80 mL and is a key component of cardiac output.

Step-by-step explanation:

The volume of blood discharged from the ventricle with each heartbeat is known as stroke volume. The term 'stroke volume' refers to the amount of blood that is pumped out of the ventricle during each cardiac contraction. To provide a broader context, cardiac output is the total volume of blood pumped by the ventricle in one minute and it is calculated by multiplying the stroke volume by the heart rate. A typical stroke volume is in the range of 70-80 mL. This figure, along with the heart rate, determines the cardiac output, which is crucial for maintaining adequate blood circulation throughout the body.