Right anterior basal segmental bronchus (B8)

Bronchus segmentalis anterior basal

RespiratoryOrgansThoraxRight side

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What it is
Segmental (tertiary) bronchus B8, supplying the anterior 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 4 cm long and 4–6 mm in diameter; its wall holds irregular cartilage plates.
Clinical note
Because each segment has its own airway and blood supply, a diseased segment can be removed on its own (segmentectomy).