1. The remaining blood is returned to the heart via the pulmonary veins . 2. The pulmonary vein returns the now oxygen-rich blood to the left atrium. 3. In the left atrium, the junction is at the pulmonary veins . 4. The pulmonary veins carry relatively oxygenated blood from the lungs to the heart. 5. The enlarged pulmonary veins are seen entering the left atrium above . ]] 6. When this happens, the pressure backs up into the pulmonary veins and the lungs. 7. The venation of the lung, with the exception of the great pulmonary vein , is very indistinct. 8. Blood is oxygenated in the lungs and returns to the left atrium through the pulmonary veins . 9. Her chest cavity was urgently opened up, revealing a significant wound to her left pulmonary vein . 10. Diana, who suffered massive bleeding from the left pulmonary vein , was taken to La Pitie-Salpetriere Hospital.
