bronchiole

(redirected from Respiratory bronchioles)
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Related to Respiratory bronchioles: Alveolar ducts

bronchiole

any of the smallest bronchial tubes, usually ending in alveoli

bronchiole

[′bräŋ·kē‚ōl]
(anatomy)
A small, thin-walled branch of a bronchus, usually terminating in alveoli.
References in periodicals archive ?
Because respiratory bronchioles are generally clustered in the center of the secondary lobule, their destruction (proximal acinar destruction) is seen as a hole in the center of the lobule, and hence the synonym centrilobular emphysema (Figure 2).
Cigarette smoking produces inflammatory changes in small airways, especially respiratory bronchioles leading to dilatation and destruction of the small airways.
2] injures the respiratory tract and has its greatest effect upon respiratory bronchioles (Chauhan et al.
Respiratory bronchioles have occassional alveoli budding from their walls, while alveolar ducts are completely lined with alveoli.
Respiratory bronchiolitis (RB) can be identified by microscopic examination of the lungs of essentially all current cigarette smokers and many ex-smokers, (5) and it consists of collections of pigmented macrophages ("smoker's macrophages") in the lumens of respiratory bronchioles and surrounding alveoli.
Cilia line the nose, paranasal sinuses, middle ear, Eustachian tube, bronchi as far as respiratory bronchioles and tail of spermatozoa.
The Canals of Lambert are respiratory bronchiolar communications that allow for gas flow between respiratory bronchioles.
1985) to evaluate airway wall fibrosis and airway wall muscle in the membranous bronchioles (MBs) and respiratory bronchioles (RBs).
The tracheobronchial tree is ciliated to the level of the respiratory bronchioles, each ciliated cell having about 200 cilia.
The main pathologic findings in respiratory bronchiolitis-associated interstitial lung disease are respiratory bronchiolitis, with lightly pigmented macrophages and mild inflammatory changes that are primarily centered on respiratory bronchioles.
After the terminal bronchiole, the following seven generations of dichotomous divisions are called respiratory bronchioles and serve the gas-exchanging parenchyma consisting of budding alveoli.
Species with branching respiratory bronchioles between the terminal bronchiole and alveolar ducts have more complex acini.