2024年7月23日 · Bronchopulmonary segmental anatomy describes the division of the lungs into segments based on the tertiary or segmental bronchi. The trachea divides at the carina forming the left and right main stem bronchi which enter the lung substance to divide further.

Tracheal and accessory cardiac bronchus are rather notable airway variants, but smaller and less conspicuous variations in both airway and vascular anatomy occur at the (sub)segmental level.

2019年3月10日 · Subsegmental atelectasis meaning. It means that small part of the lung is airless and collapsed. This is often caused by a small bronchus (tube that carries air to the lungs) is inflamed or blocked by mucus. In rare instances, a growth or tumor can cause subsegmental atelectasis. The lung is split into 10 segments or parts on each side.

The left main bronchus divides into two secondary bronchi or lobar bronchi, to deliver air to the two lobes of the left lung—the superior and the inferior lobe. The secondary bronchi divide further into tertiary bronchi, (also known as segmental bronchi), each of which supplies a bronchopulmonary segment.

2023年8月8日 · Each segmental bronchi supply a bronchopulmonary segment, which are the largest subdivisions of the lobe. There are ten bronchopulmonary segments in the right lung and eight through ten bronchopulmonary segments in the left lung, depending on the segment combinations. [3]

2023年10月30日 · The left pulmonary artery is found lying initially above the left main bronchus, then later in front of it. Secondary bronchi will further subdivide into the tertiary bronchi, which are also called the segmental bronchi, each of which supplies a bronchopulmonary segment.

肺段（segment）：是由肺叶支气管分支所支 配的部分，是以胸膜为基底，肺门部段支气管为尖 端的不规则的圆锥体。 ① 有独立的支气管、肺动脉和肺静脉。 ② 其分区建立在支气管分支的基础上，由肺段支气 管决定。 ffThe End ！ ff肺部解剖是作为肺部影像学的基础，现代医 学越来越精确，所以作为影像学要为临床提供辅助， 精确地分叶、分段就十分必要；同时精确地分段可 以为临床提供更佳精确的指导。 ff主叶裂呈斜行走向， 在后上方约达第四椎 体水平，前下方达前 心 …

The segmental bronchi further divide into several generations of subsegmental bronchi. They become increasingly narrow, progressively loose their cartilage and divide further into bronchioles. The bronchioles are conducting airways of smaller diameters (usually ∼1 mm) and, in contrast to bronchi, their wall does not contain cartilage or ...

2018年1月1日 · Subsegmental bronchi are the air passages resulting from subdivision of segmental bronchi within the respiratory tree. Further divisions of subsegmental bronchi produces bronchioles.

2021年5月1日 · Given the increasing relevance of recognizing the bronchial segmentation variations during bronchoscopy procedures, as well as the few former papers about bronchial lengths, our study has the aim to describe the prevalence of the different variations in a first sample of pulmonary dissection and a second sample of bronchoscopic images; and ...