Which chamber of the heart is responsible for pumping blood to the lungs?

The right ventricle is responsible for pumping blood to the lungs. This chamber receives deoxygenated blood from the right atrium, which has circulated through the body and is low in oxygen. Once the right ventricle fills with this blood, it contracts and sends the blood through the pulmonary arteries to the lungs for oxygenation. In the lungs, carbon dioxide is exchanged for oxygen, and the now oxygen-rich blood returns to the left atrium of the heart, completing the circuit of pulmonary circulation.

The other options refer to different parts of the heart with distinct functions. The left atrium collects oxygenated blood from the lungs, the left ventricle pumps this oxygen-rich blood throughout the body, and the right atrium receives deoxygenated blood returning from the body. Understanding these functions helps to clarify the specific roles each chamber plays in the overall circulation of blood.