Question

Fill in the blanks.

(xxii) During each cardiac cycle, each ventricle pumps out about _____ mL of blood known as stroke volume.

Answer 1

Cardiac cycle:

1. The sequence or the repeating process of systole (contraction) and diastole (relaxation) of the heart chambers is referred to as a cardiac cycle.
2. The cardiac cycle occurs for a duration of 0.8 seconds.
3. The cardiac cycle is the circulatory process of blood received by the heart and the blood pumped by the heart.

Stroke volume:

1. When the ventricles contract, they pump blood from the heart to other organs.
2. And, this phase of ventricular contraction is known as ventricular systole.
3. The stroke volume is the amount of blood that is pumped out of the heart during each cardiac cycle.
4. The human heart has a stroke volume of 70 mL.

During each cardiac cycle, each ventricle of the heart pumps out about 70 mL of blood which is known as the stroke volume.