| bronchiolus | Synonym: bronchiole. Origin: Mod. L. Dim. Of bronchus (05 Mar 2000) |
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| bronchiolus terminalis | The end of the nonrespiratory conducting airway; the lining is simple columnar or cuboidal epithelium without mucous goblet cells; most of the cells are ciliated, but a few nonciliated serous secreting cells occur. Synonym: bronchiolus terminalis. (05 Mar 2000) |