where does oxygen rich blood from the left atrium go
Physiology. Blood is pumped by the right side of the heart to the lungs, where it passes through a capillary bed and picks up vital supplies of oxygen from the air in the lungs. This newly oxygenated blood collects in the pulmonary veins and travels to the left atrium of the heart. The left atrium acts as a collecting chamber for blood and allows it to pass into the larger and more muscular left ventricle.