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Review of Gas Exchange: In a Nutshell (Nursing)

by Rhonda Lawes

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    00:01 So, let's wrap up this video series.

    00:02 The alveoli are the only place in the lungs where oxygen and carbon dioxide are exchanged.

    00:09 The walls of the alveoli and the capillaries are one-cell thick, and that's to allow for diffusion of oxygen into the capillaries and carbon dioxide into the alveoli to be exhaled.

    00:21 Now, there's three types of cells in the alveoli, Type I, Type II, and macrophages.

    00:27 Surfactant is produced by the Type II cells and reduces surface tension which helps prevent the alveoli from collapsing.

    00:35 Now, the walls of the alveoli are destroyed in respiratory diagnoses like emphysema.

    00:42 They're penetrated with inflammatory substances and filled with fluid in ARDS, and they collapse due to lack of surfactant in premature infants.

    00:52 Thanks for watching our video today.


    About the Lecture

    The lecture Review of Gas Exchange: In a Nutshell (Nursing) by Rhonda Lawes is from the course Acute Respiratory Distress Syndrome (ARDS) (Nursing) (quiz coming soon).


    Author of lecture Review of Gas Exchange: In a Nutshell (Nursing)

     Rhonda Lawes

    Rhonda Lawes


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