What is the function of the heart's four chambers?

The function of the heart's four chambers is integral to the circulatory system. In the correct choice, the right atrium's primary role is to receive deoxygenated blood returning from the body through the superior and inferior vena cavae. This blood is then directed to the right ventricle, which pumps it to the lungs for oxygenation.

On the other hand, the left ventricle is responsible for receiving oxygenated blood from the left atrium, which collects it from the lungs. The left ventricle subsequently pumps this oxygen-rich blood out to the rest of the body through the aorta.

This explanation clarifies that the right atrium does indeed receive deoxygenated blood, and the left ventricle plays a crucial role in delivering oxygenated blood to the body's tissues, making the response encompassing and accurate about the heart's function.