The myocardium is thickest in the right atrium chamber because it must work the hardest to pump blood to the entire body.

Question

Quizplus · Accepted Answer

The myocardium, or the muscle layer of the heart, is actually thickest in the left ventricular chamber, as it is responsible for pumping blood to the entire body through the aorta. The right atrium chamber does not have to work as hard, as it only pumps blood to the right ventricle, which then pumps blood to the lungs for oxygenation.

The Myocardium Is Thickest in the Right Atrium Chamber Because