The amount of resistance that must be overcome by the left ventricle during systole is called:
A) stroke volume.
B) preload.
C) cardiac output.
D) afterload.

Question

Quizplus · Accepted Answer

The amount of resistance that the left ventricle must overcome during systole is known as afterload. It is the force against which the heart must work to eject blood during systole. This force is determined by the resistance of the systemic circulation and the resistance of the aortic valve. Preload refers to the volume of blood in the ventricles at the end of diastole, while stroke volume is the amount of blood ejected by the ventricles during systole, and cardiac output is the amount of blood pumped by the heart per minute.

The Amount of Resistance That Must Be Overcome by the Left