Pulmonary Veins

• Return oxygenated blood to the heart from the lungs

• They are 4 in number, and 2 on each side draining into the left atrium

• Pulmonary  veins do not accompany pulmonary artery branches

• They have no valves

• Relationship in the hilus:

  • superior pulmonary vein lies slightly inferior & anteior to the pulmonary artery

  • posterior  - bronchus

  • superior pulmonary veins in front
    superior pulmonary artery in the middle
    superior bronchus in back