The bronchopulmonary segments of the lungs

A knowledge of the finer arrangement of the bronchial tree is an essential

Table 1 The named divisions of the main bronchi.

Right main bronchus

Left main bronchus

Upper lobe bronchus

Middle lobe bronchus

Lower lobe bronchus

Upper lobe bronchus

Lingular bronchus

Lower lobe bronchus

Apical

Posterior

Anterior

Lateral

Medial

Apical Basal

Apicoposterior Anterior Superior Inferior

Apical Basal

Medial (cardiac) Anterior Lateral Posterior

Anterior

Lateral

Posterior

Bronchial Divisions Apical Anterior

Right

Upper lobe

1 Apical bronchus

2 Posterior bronchus

3 Anterior bronchus

Left

Upper lobe

1 } Apicoposterior bronchus

3 Anterior bronchus Lingula

4 Superior bronchus

5 Inferior bronchus

Lower lobe

6 Apical bronchus

Right

Upper lobe

1 Apical bronchus

2 Posterior bronchus

3 Anterior bronchus

Middle lobe

4 Lateral bronchus

5 Medial bronchus

Lower lobe

6 Apical bronchus

7 Medial basal (cardiac) bronchus

8 Anterior basal bronchus

9 Lateral basal bronchus

10 Posterior basal bronchus

Left

Upper lobe

1 } Apicoposterior bronchus

3 Anterior bronchus Lingula

4 Superior bronchus

5 Inferior bronchus

Lower lobe

6 Apical bronchus

8 Anterior basal bronchus

9 Lateral basal bronchus 10 Posterior basal bronchus

Fig. 20 The named divisions of the main bronchi.

prerequisite to intelligent appreciation of lung radiology, to interpretation of bronchoscopy and to the surgical resection of lung segments. Each lobe of the lung is subdivided into a number of bronchopulmonary segments, each of which is supplied by a segmental bronchus, artery and vein. These segments are wedge-shaped with their apices at the hilum and bases at the lung surface; if excised accurately along their boundaries (which are marked by intersegmental veins), there is little bleeding or alveolar air leakage from the raw lung surface.

The names and arrangements of the bronchi are given in Table 1; each bronchopulmonary segment takes its title from that of its supplying segmental bronchus (listed in the right-hand column of the table).

Bronchopulmonary Segments
Fig. 21 (a) The segments of the right lung. (b) The segments of the left lung.

The left upper lobe has a lingular segment, supplied by the lingular bronchus from the main upper lobe bronchus. This lobe is equivalent to the right middle lobe whose bronchus arises as a branch from the main bronchus. Apart from this, differences between the two sides are very slight; on the left, the upper lobe bronchus gives off a combined apicoposterior segmental bronchus and an anterior branch, whereas all three branches are separate on the right side.

On the right also there is a small medial (or cardiac) lower lobe bronchus which is absent on the left, the lower lobes being otherwise mirror images of each other.

How To Get Perfect Abs

How To Get Perfect Abs

The Complete Guide To How to Get Perfect Abs is Here. While other books gear you towards buying a product or a service, this book actually tells you exactly what you need to do to get the abs of your dreams. Getting a six pack and looking good is easier than ever if you follow the instructions in this book. This book does not just tell you what workout machines to use, but how to think, what to eat, what not to eat and how to exercise to get the six pack abs that you have longed for but never thought that you would get.

Get My Free Ebook


Responses

  • michael walker
    What are the 8 segments of the left lung?
    8 years ago
  • erik
    What is the lingular segment of the left upper lobe of the lung?
    7 years ago
  • brhane
    How many bronchopulmonary segments are in each lobe?
    7 years ago
  • Enrica
    How many segments in lungs?
    4 years ago
  • LYLA
    How many bronchopulmonary segments in an adult lungs?
    3 years ago
  • SAARE KIDANE
    What are unique reatures of the bronchiopulmonary segment of left lung?
    3 years ago
  • Sabra
    What are features of bronchopulmonaray of lung arcinoma?
    3 years ago
  • tomacca
    What are the names of the segments in bronchopulmonary segment?
    2 years ago
  • Richard
    What are the broncho pulmonary segment of the right and left lungs?
    2 years ago
  • NIKLAS
    What are the bronchiopulmonary segments and clinical application?
    1 year ago

Post a comment