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Index >  Principles  > The left upper lobe bronchus
The left upper lobe bronchus

The left upper lobe bronchus is very short. It rapidly divides into two main branches : the upper lobe bronchus proper and the lingular bronchus.

The upper lobe bronchus divides into two segments, the apical dorsalis (B1+2) and the ventralis (B3).
The lingular bronchus divides into two segments, superior (B4) and inferior (B5).

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upper lobe bronchus
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lingular bronchus
 
 
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