Left main bronchus
bronchus principalis sinister
It arises from the bifurcation of the trachea, below the aortic arch and above the pericardium, and runs inferolaterally, in front of the esophagus and the thoracic aorta, to the hilum of the left lung.

In the full entry
The full entry, with every field, sources, quiz and clinical correlations, is in the atlas.
- Structure
- Neighborhood
- Clinical
Related clinical cases
- Aspiration of foreign bodies
- Bronchoscopy and the carina of the trachea
- Bronchogenic carcinoma and nerves of the mediastinum