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

Question

Quizplus · Accepted Answer

The left ventricle pumps blood through the systemic circulation, which requires pumping against a higher resistance compared to the right ventricle, which pumps blood through the pulmonary circulation. This is why the left ventricle has a thicker wall.

The Fact That the Left Ventricle of the Heart Is