2024-03-13T01:51:59+03:00[Europe/Moscow] en true <p>Thin-walled air sacs extending from respiratory bronchioles</p><p></p><p>Cobweb of pulmonary capillaries</p><p></p><p>Macrophages</p><p></p><p>Surrounded by fine elastic fibers</p>, <p>Squamous epithelial cells</p>, <p>Cuboidal epithelial cells scattered amongst type 1 cells</p>, <p>Capillary, alveolar walls, and basement membrane</p><p></p><p>0.5-µm-thick blood air barrier</p>, <p>Site of gas exchange through simple diffusion</p>, <p>Secretes antimicrobial proteins for innate immunity&nbsp;</p><p></p><p>Secretes surfactant</p><p>Fluid containing a detergent-like substance that coats gas-exposed alveolar surfaces</p>, <p>Connects adjacent alveoli to allow air pressure throughout the lung to be equalized&nbsp;</p><p></p><p>Provides alternate routes to any collapsed alveoli</p>, <p>Alveolar walls</p>, <p>_____________ decreases the ___________ of ______ molecules&nbsp;</p><p>decreases the amount of _________ _________ in the alveolar fluid discouraging ________ _________</p> flashcards
Respiratory Membrane and Alveoli

Respiratory Membrane and Alveoli

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  • Thin-walled air sacs extending from respiratory bronchioles

    Cobweb of pulmonary capillaries

    Macrophages

    Surrounded by fine elastic fibers

    Alveoli

  • Squamous epithelial cells

    Type 1 alveolar cells

  • Cuboidal epithelial cells scattered amongst type 1 cells

    Type 2 alveolar cells

  • Capillary, alveolar walls, and basement membrane

    0.5-µm-thick blood air barrier

    Respiratory Membrane

  • Site of gas exchange through simple diffusion

    Respiratory Membrane

  • Secretes antimicrobial proteins for innate immunity 

    Secretes surfactant

    Fluid containing a detergent-like substance that coats gas-exposed alveolar surfaces

    Type 2 alveolar cells

  • Connects adjacent alveoli to allow air pressure throughout the lung to be equalized 

    Provides alternate routes to any collapsed alveoli

    Alveolar Pores

  • Alveolar walls

    Type 1 alveolar cells

  • _____________ decreases the ___________ of ______ molecules 

    decreases the amount of _________ _________ in the alveolar fluid discouraging ________ _________

    surfactant

    cohesiveness

    water

    surface tension

    alveolar collapse