title: [Ultrastructure of the pulmonary alveolus. Correlations with the endoalveolar tensioactive system].
abstract: The knowledge of chemical structure and physiologic role of endoalveolar tensioactive system are a progress of the last ten years. The authors deal with the origin, fate and relationships with pulmonary surfactant metabolism of alveolar cells. Morphology and functions of alveolar-capillary membrane, type I and II cells, bronchiolar non-ciliated Clara cells and alveolar macrophages have been outlined. Lamellar bodies, alveolar type II cells intracitoplasmatic inclusions were particularly considered, as well as tubular myeline structures.
mesh_terms: D004848:Epithelium / Q000648:ultrastructure; D006801:Humans; D008264:Macrophages / Q000502:physiology*; D011650:Pulmonary Alveoli / Q000378:metabolism / Q000502:physiology / Q000648:ultrastructure*; D011663:Pulmonary Surfactants / Q000096:biosynthesis / Q000502:physiology
chemical_list: D011663:Pulmonary Surfactants
vernacular_title: Ultrastruttura dell'alveolo polmonare. Correlazioni con il sistema tensioattivo endoalveolare.