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Bronchial veins (anatomy)

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

The bronchial veins form part of the venous drainage system of the lung with the pulmonary veins. It can be divided into two sections:

  • deep system:
    • drains lung parenchyma deep to segmental divisions
    • drains into:
      • pulmonary veins between segmental septae
      • left atrium
  • superficial system:
    • drains:
      • the visceral pleura
      • the segmental and subsegmental regions of lung parenchyma in the region of the hilum
    • on the right, the bronchial veins converge on a main trunk which passes into the azygous vein
  • on the left, the bronchial veins converge on a main trunk which drains to:
    • the accessory hemiazygous vein or
    • left superior intercostal vein
    • both trunks may receive tracheal and mediastinal veins before passing to the next major vein

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