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A bronchopulmonary segment is a portion of lung supplied by a specific segmental bronchus and its vessels. [ 1 ] [ 2 ] These arteries branch from the pulmonary and bronchial arteries , and run together through the center of the segment.
The lobar bronchi branch into tertiary bronchi also known as segmental bronchi and these supply air to the further divisions of the lobes known as bronchopulmonary segments. Each bronchopulmonary segment has its own (segmental) bronchus and arterial supply. [8] Segments for the left and right lung are shown in the table. [5]
The right lung has three lobes – upper, middle, and lower (or superior, middle, and inferior), and the left lung has two – upper and lower (or superior and inferior), plus a small tongue-shaped portion of the upper lobe known as the lingula. Each lobe is further divided up into segments called bronchopulmonary segments. Each lung has a ...
A bronchopulmonary segment is a division of a lung separated from the rest of the lung by a septum of connective tissue. This property allows a bronchopulmonary segment to be surgically removed without affecting other segments.
Postural drainage is used to treat any condition that causes the build-up of secretions in bronchopulmonary segments. These include: bronchiectasis [2] [3] lung abscesses [2] [3] cystic fibrosis [3] atelectasis [3] chronic obstructive pulmonary disease (COPD) [3] pneumonia [3] postoperative lung damage (after some thoracic surgery) [3] COVID-19 [4]
Pulmonary hypoplasia is an incomplete development of the lungs, resulting in an abnormally low number or small size of bronchopulmonary segments or alveoli.A congenital malformation, most often occurs secondary to other fetal abnormalities that interfere with normal development of the lungs.
Segmentectomies are the surgical removal of bronchopulmonary segments and often involve the removal of two adjacent segments. The pulmonary arterial branches to the segments are first identified then divided. Next, stapling is used to divide the segmental bronchi and separate the segments from the lung. [13]
These in turn give rise to tertiary bronchi (tertiary meaning "third"), known as segmental bronchi which supply each bronchopulmonary segment. [1] The segmentary bronchi subdivide into fourth order, fifth order and sixth order segmental bronchi before dividing into the bronchioles.