In the cardiac cycle, which statement is true?
A)All blood is actively pumped from the ventricles.
B)Most blood is actively pumped from the atria.
C)All blood is actively pumped into the ventricles.
D)Most blood is actively pumped into the atria.

Question

Quizplus · Accepted Answer

During the cardiac cycle, all blood is actively pumped from the ventricles. The ventricles are the major pumping chambers of the heart, responsible for pushing blood out of the heart and into the circulatory system. The atria, on the other hand, primarily act as receiving chambers, receiving blood returning from the body or lungs and flowing it into the ventricles. Therefore, B, C, and D are incorrect statements.

In the Cardiac Cycle, Which Statement Is True