Bronchopulmonary segments (Left lung) (English)

The left lung is composed of 8-10 bronchopulmonary segments (depending on classification) which can be identified from both medial and lateral views. Each bronchopulmonary segment has its own segmental (tertiary) bronchus and segmental branch of the pulmonary artery (of the same name). The superior lobe of the left lung is formed by four main bronchopulmonary segments: the apicoposterior (1, 2), anterior (3), superior lingular (4) and inferior lingular segments (5) which are situated at the lingula of the left lung. The inferior lobe is composed of superior (6) and basal segments. The latter are further divided into the anteromedial basal (7, 8), lateral basal (9) and posterior basal (10) segments.