Which part of the heart receives oxygenated blood from the lungs?

The left atrium is the part of the heart that receives oxygenated blood from the lungs. This occurs through the pulmonary veins, which transport oxygen-rich blood back from the lungs to the heart. Once the blood enters the left atrium, it is then pushed into the left ventricle, where it is subsequently pumped into the aorta and distributed throughout the body.

Understanding the flow of blood through the heart is crucial in comprehending how oxygenated and deoxygenated blood is managed. The right atrium, for example, is responsible for receiving deoxygenated blood from the body, while the right ventricle pumps that deoxygenated blood to the lungs for re-oxygenation. The left ventricle plays a critical role in pumping the oxygenated blood out to the systemic circulation, but it does not receive blood directly from the lungs itself—this function belongs to the left atrium.