When this happens, the pressure backs up into the pulmonary veins and the lungs.
A multiple anomaly of the human heart and pulmonary veins.
They were able to isolate all pulmonary veins in 100% of patients in both groups.
In this image, the heat is destroying tissue at the base of the pulmonary vein.
The remaining blood is returned to the heart via the pulmonary veins.
In humans there are four pulmonary veins, two from each lung.
In the left atrium, the junction is at the pulmonary veins.
The disorder is sometimes called misalignment of the pulmonary veins.
The pulmonary veins take blood to the left side of the heart.
From there, blood flows back through the pulmonary vein to the left atrium.