Right posterior basal segmental bronchus (B10)
Bronchus segmentalis posterior basal
RespiratoryOrgansThoraxRight side
- What it is
- Segmental (tertiary) bronchus B10, supplying the posterior basal bronchopulmonary segment of the right lower lobe.
- Function
- Conducts air to one bronchopulmonary segment, a pyramidal unit of lung with its own bronchus and segmental artery.
- Size
- About 3 cm long and 4–6 mm in diameter; its wall holds irregular cartilage plates.
- Clinical note
- The posterior basal segments are the most dependent parts of the lungs when upright, where aspirated fluid and effusions first gather.