Pulmonary Vein
Pulmonary vein is the blood vessel that carries blood from the lungs to the left atrium (a chamber) of the heart. The blood that it carries is oxygenated blood and is one of the very few veins of the body that carry oxygenated blood. Pulmonary veins are four in number, two from each lung.
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Pulmonary Vein
The pulmonary veins arise from the hilum of the lung. Each lung giving rise to one superior and one inferior pulmonary vein. The veins are attached to the pericardium (heart sac). The pulmonary vein has pulmonary artery closely associated with it. The right pulmonary veins are found behind the superior vena cava and the right atrium. The left pulmonary veins pass the descending thoracic aorta from front.
Pulmonary veins play an important role in the oxygenation of blood and respiration as they carry oxygenated blood from the alveoli of lungs to the left side of the heart.
The pulmonary veins carry oxygenated blood to the heart as opposed to the other veins of the systemic circulation which carry deoxygenated blood.
ANATOMICAL FEATURES
FUNCTION
CLINICAL IMPORTANCE
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