Which ventricle pumps blood through the entire rest of the body?

The left ventricle is responsible for pumping oxygenated blood to the entire body. After blood is oxygenated in the lungs, it returns to the heart and enters the left atrium before flowing into the left ventricle. From there, the left ventricle contracts and ejects the blood into the aorta, the main artery that delivers blood to the rest of the body.

This process is essential for ensuring that all body tissues receive the necessary oxygen and nutrients. The left ventricle’s thick muscular walls are adapted for this task, enabling it to generate the high pressure needed to send blood throughout the entire systemic circulation.

In contrast, the right ventricle pumps blood to the lungs for oxygenation, while the atria (both right and left) serve primarily as receiving chambers for blood returning to the heart rather than pumping it out.