The amount of blood that returns to the heart during diastole is called:
A) cardiac output.
B) preload.
C) myocardial capacity.
D) afterload.

Question

Quizplus · Accepted Answer

Preload is the amount of blood that returns to the heart during diastole, which stretches the cardiac muscles and prepares them for the next contraction. Cardiac output is the amount of blood pumped by the heart per minute, myocardial capacity refers to the ability of the heart muscle to contract, and afterload is the pressure the heart needs to overcome to eject blood from the ventricles.

The Amount of Blood That Returns to the Heart During