Alveolar Type I and Type II Cells

H. E. Ward, T. E. Nicholas

    Research output: Contribution to journalArticle

    37 Citations (Scopus)

    Abstract

    The alveolar epithelium comprises two main cell types: the alveolar type I and alveolar type II cell. The type I cell is a complex branched cell with multiple cytoplasmic plates that are greatly attenuated and relatively devoid of organelles; these plates represent the gas exchange surface in the alveolus. On the other hand, the type II cell acts as the “caretaker” of the alveolar compartment. It responds to damage of the vulnerable type I cell by dividing and acting as a progenitor cell for both type I and type II cells. In addition, it synthesises, stores and releases pulmonary surfactant into the alveolar hypophase, where it acts to optimise conditions for gas exchange.

    Original languageEnglish
    Pages (from-to)731-734
    Number of pages4
    JournalAustralian and New Zealand Journal of Medicine
    Volume14
    Issue numberS3
    DOIs
    Publication statusPublished - Oct 1984

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