Which chamber receives oxygenated blood from the pulmonary veins?

The left atrium is the chamber of the heart responsible for receiving oxygenated blood from the pulmonary veins. After blood has been oxygenated in the lungs, it returns to the heart via the pulmonary veins. These veins transport the oxygen-rich blood directly into the left atrium.

From the left atrium, the blood subsequently flows into the left ventricle, which then pumps it out to the rest of the body through the aorta. This sequence of blood flow highlights the left atrium's crucial role in the circulatory system, acting as a receiving chamber for oxygenated blood before it is distributed. Understanding this process is essential for grasping the overall functioning of the heart and the systemic circulation of oxygenated blood throughout the body.