The fact that the left ventricle of the heart is thicker than the right ventricle reveals that it ________.
A) pumps blood against a greater resistance
B) expands the thoracic cage
C) sends blood through a smaller valve
D) pumps a greater volume of blood

Question

Quizplus · Accepted Answer

The left ventricle pumps blood against a greater resistance as it is responsible for pumping oxygenated blood to the entire body, whereas the right ventricle only pumps blood to the lungs for oxygenation. Therefore, the left ventricle must exert more force to pump blood against a greater resistance, which leads to its muscular wall being thicker than the right ventricle.

The Fact That the Left Ventricle of the Heart Is