anterior (bronchopulmonary) segment [S III]
of the three bronchopulmonary segments comprising the upper lobe of the right or left lungs, the one that lies nearest the costal cartilages, supplied by the anterior segmental bronchus [B III] and anterior segmental (pulmonary) artery.
Synonym(s): segmentum (bronchopulmonale) anterius S IIITA
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