Lung alveoli are the ends of the respiratory tree, branching from either alveolar sacs or alveolar ducts, which like alveoli are both sites of gas exchange with the blood as well.
12.
The tertiary bronchi divide into many smaller bronchioles which divide into terminal bronchioles, each of which then gives rise to several respiratory bronchioles, which go on to divide into two to eleven alveolar ducts.
13.
|Alveolar duct " tiny ducts that connect the respiratory bronchioles to alveolar sacs, each of which contains a collection of alveoli ( small mucus-lined pouches made of flattened epithelial cells ) ."
14.
If nitrogen dioxide poisoning is untreated, fibrous granulation tissue is likely to develop within the alveolar duct, a tiny ducts that connect the respiratory bronchioles to alveolar sacs, each of which contains a collection of alveoli ( small mucus-lined pouches made of flattened epithelial cells ).
