The left ventricular wall of the heart is thicker than the right wall in order to ________.
A) accommodate a greater volume of blood
B) expand the thoracic cage during diastole
C) pump blood with greater pressure
D) pump blood through a smaller valve

Question

Quizplus · Accepted Answer

The left ventricular wall is thicker than the right because it needs to pump blood with greater pressure in order to push the blood out into the systemic circulation. The right ventricle only needs to pump blood to the lungs, which is a much shorter distance and therefore requires less pressure. Therefore, choice C is the best answer.

The Left Ventricular Wall of the Heart Is Thicker Than