Which chambers of the heart are located at the bottom?

The ventricles are located at the bottom of the heart. This anatomical positioning is crucial to understand the heart's structure and function. The heart consists of four chambers: two atria at the top and two ventricles at the bottom. The ventricles play a vital role in pumping blood out of the heart.

The right ventricle receives deoxygenated blood from the body and pumps it to the lungs, while the left ventricle receives oxygenated blood from the lungs and pumps it out to the rest of the body. Their muscular walls are thicker than those of the atria because they need to generate greater force to push blood over longer distances. This structural distinction is essential for maintaining efficient circulation throughout the body.

Considering other options, while the atria are the upper chambers and serve as entry points for blood, they do not occupy the lower position. Similarly, the coronary arteries and veins are associated with blood supply but do not refer to the chambers of the heart. Understanding the heart’s anatomy helps clarify its functional dynamics, particularly the role played by the ventricles in the cardiovascular system.