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Index >  Principles  > The right main stem bronchus
The right main stem bronchus

The right main stem bronchus takes off at a 20 to 30° angle from the medial axis of the trachea.

The average length of the adult right main stem bronchus is 2.5 cm and its average diameter is 13 mm.

The right main stem bronchus gives off one branch for the right upper lobe, and subsequently becomes the bronchus intermedius.

 
 
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