Right lower lobe bronchus
Lobar bronchi · 5 segments Straightest path
The direct posterior continuation of the bronchus intermedius, and therefore the straightest path from the trachea. It gives the superior (apical) segmental bronchus from its posterior wall almost immediately, then four basal segmental bronchi.
Traced from the start
- Trachea
- Right main bronchus
- Right lower lobe bronchus
Detail
- Origin
- Continuation of the bronchus intermedius beyond the middle lobe bronchus
- Branches
- Superior (apical) segmental bronchus first, then medial, anterior, lateral and posterior basal bronchi
- Why it matters
- The most vertical route from the trachea, so the default destination for inhaled material in the erect adult
When it goes wrong
Inhaled foreign body or aspiration while erect
Right lower lobe consolidation or collapse, classically the posterior basal segment; a peanut or tooth is found at bronchoscopy
Aspiration while supine or obtunded
Superior segment of the right lower lobe: anaerobic lung abscess with an air-fluid level one to two weeks later
Right lower lobe collapse
Loss of the right hemidiaphragm outline with a preserved right heart border; triangular density behind the heart
Practise this structure
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