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Bronchopulmonary segment

Bronchopulmonary segment
Bronchopulmonary segments visible but not labeled.
File:Bronchopulmonary segments.png
Latin segmenta bronchopulmonalia
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Anatomical terminology

Each of the tertiary bronchi serves a specific bronchopulmonary segment. These segments each have their own artery. Thus, each bronchopulmonary segment is supplied by a segmental bronchus, and two arteries, a pulmonary artery and a bronchial artery which run together through the center of the segment. Veins and lymphatics drain along the edges.

There are 10 bronchopulmonary segments in the right lung (3 in superior lobe, 2 in middle lobe, 5 in inferior lobe) and 10 segments on the left lung. Some of the segments may fuse in the left lung to form usually 8-9 segments (4-5 in upper lobe, 4-5 in lower lobe).[1] Each segment is separated from the others by a layer of connective tissue.

This means that each bronchopulmonary segment is a discrete anatomical and functional unit, and this separation means that a bronchopulmonary segment can be surgically removed without affecting the function of the other segments.

Delineation of the bronchopulmonary segments was made by Dr. John Franklin Huber, Dr. Chevalier Jackson and Dr. Charles M. Norris at Temple University Hospital.[2]

Right lung

  • superior lobe
    • apical
    • posterior
    • anterior
  • middle lobe
    • lateral
    • medial
  • inferior lobe
    • superior
    • medial-basal
    • anterior-basal
    • lateral-basal
    • posterior-basal

Left lung

  • superior lobe
    • apico-posterior (merger of "apical" and "posterior")
    • anterior
  • lingula of superior lobe
    • inferior lingular
    • superior lingular
  • inferior lobe
    • superior
    • anteromedial basal (merger of "anterior basal" and "medial basal")
    • posterior basal
    • lateral basal


  1. ^ Drake, Richard L.; Vogl, Wayne; Tibbitts, Adam W.M. Mitchell ; illustrations by Richard; Richardson, Paul (2005). Gray's anatomy for students 2nd Edition (Pbk. ed.). Philadelphia: Elsevier/Churchill Livingstone. p. 240. ISBN 978-0-443-06612-2. 
  2. ^ Jackson, Chevalier; Huber, John Franklin (July 1943). "Correlated Applied Anatomy of the Bronchial Tree and Lungs With a System of Nomenclature". CHEST 9 (4): 319–326. doi:10.1378/chest.9.4.319. 

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