What are the four chambers of the heart?

The four chambers of the heart consist of two atria and two ventricles, specifically the right atrium, left atrium, right ventricle, and left ventricle. This structure is essential for the heart's function in circulating blood throughout the body. The right atrium receives deoxygenated blood from the body and pumps it into the right ventricle, which then sends it to the lungs for oxygenation. Meanwhile, the left atrium receives oxygenated blood from the lungs and sends it to the left ventricle, which pumps it out to the rest of the body. Understanding these chambers and their roles is crucial for grasping how the cardiovascular system operates effectively. The presence of both atria and both ventricles is necessary for proper blood flow and oxygenation, which is why this answer encompasses the complete anatomy of the heart.