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The secondary bronchi divide further into tertiary bronchi, (also known as segmental bronchi), each of which supplies a bronchopulmonary segment. 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 ...
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 ...
Primary cancers (e.g. bronchial carcinoma, mesothelioma) Secondary cancers (e.g. cancers that originated elsewhere in the body, but have seeded themselves in the lungs) Insufficient surfactant (e.g. respiratory distress syndrome in pre-term babies) . Disorders of the respiratory system are usually treated by a pulmonologist and respiratory ...
Atlas image: lung_carina at the University of Michigan Health System - "Cast of trachea and bronchi, anterior view" (#2) [dead link ] "Trachea and carina — tomogram, coronal plane" at SUNY Downstate Medical Center Archived 2016-03-03 at the Wayback Machine; Carina tracheae entry in the public domain NCI Dictionary of Cancer Terms
In asthma, the bronchioles become narrowed, causing the amount of air flow into the lung tissue to be greatly reduced. It can be triggered by irritants in the air, photochemical smog for example, as well as substances to which a person is allergic. Chronic bronchitis occurs when an abundance of mucus is produced by the lungs. The production of ...
The unit described as the secondary pulmonary lobule is the lobule most referred to as the pulmonary lobule or respiratory lobule. [25]: 489 [31] This lobule is a discrete unit that is the smallest component of the lung that can be seen without aid. [29] The secondary pulmonary lobule is likely to be made up of between 30 and 50 primary lobules ...
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The pulmonary circulation is a division of the circulatory system in all vertebrates. The circuit begins with deoxygenated blood returned from the body to the right atrium of the heart where it is pumped out from the right ventricle to the lungs.