What does the Frank-Starling law of the heart state?

Question

Quizplus · Accepted Answer

The Frank-Starling law of the heart states that the stroke volume of the heart increases in response to an increase in the volume of blood filling the heart (the end diastolic volume) when all other factors remain constant. This is because the increased blood volume stretches the ventricular wall, causing cardiac muscle cells to contract more forcefully. The principle is often summarized by stating that the heart pumps all the blood that returns to it by the veins, or more simply, "the more it's filled, the more it pumps." This is reflected in choice A, where it mentions that the greater the length (stretch) of myocardial fibers, the greater the force with which they contract.

What Does the Frank-Starling Law of the Heart State