| Revision as of 03:01, 9 February 2004 editStatkit1 (talk | contribs)347 editsNo edit summary← Previous edit | Revision as of 03:21, 24 February 2004 edit undoBensaccount (talk | contribs)8,584 edits accuracyNext edit → | ||
| Line 1: | Line 1: | ||
| The '''bronchioles''' are the |
The '''bronchioles''' are the first ] branches that no longer contain cartilage. They are branches ], and are smaller than one ] in diameter. | ||
| There are no ]s or ] in any of the bronchioles, and the ]s become more cuboidal in shape. | There are no ]s or ] in any of the bronchioles, and the ]s become more cuboidal in shape. | ||
Revision as of 03:21, 24 February 2004
The bronchioles are the first airway branches that no longer contain cartilage. They are branches bronchi, and are smaller than one millimetre in diameter.
There are no glands or cartilage in any of the bronchioles, and the epithelial cells become more cuboidal in shape.
Bronchioles divide until they become terminal bronchioles, after these the respiratory bronchioles have sporadic alveoli on their walls. Eventually the respiratory tract branches into alveolar ducts, then alveolar sacs.
Inflammation of the bronchioles is termed bronchiolitis. Diseases of the bronchioles include bronchiolitis obliterans, respiratory syncytial virus infection, influenza.