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  1. #1
    Roxanita is offline Senior Member
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    Respiratory q2 N*

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    A 40-year-old man is brought to the emergency department after being exposed to ozone and nitrogen dioxide at a factory. He dies shortly thereafter. At autopsy, examination of tissue taken from a lung biopsy suggests damage to his alveolar epithelium. If he had survived, this layer would have likely been regenerated within several weeks by which of the following cells?

    A) Clara cells

    B) Endothelial cells

    C) Reticular cells

    D) Type I pneumocytes

    E) Type II pneumocytes

  2. #2
    Asclepius1's Avatar
    Asclepius1 is offline Ultimate Member 537 points
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    Re: Respiratory q2 N*

    Quote Originally Posted by Roxanita
    A 40-year-old man is brought to the emergency department after being exposed to ozone and nitrogen dioxide at a factory. He dies shortly thereafter. At autopsy, examination of tissue taken from a lung biopsy suggests damage to his alveolar epithelium. If he had survived, this layer would have likely been regenerated within several weeks by which of the following cells?

    A) Clara cells

    B) Endothelial cells

    C) Reticular cells

    D) Type I pneumocytes

    E) Type II pneumocytes
    My guess is E. type II pneumocytes makes surfactant

  3. #3
    bleedorange is offline Newbie 510 points
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    The answer is correct. E. but it has nothing to do with production of surfactant. In the lungs type II pneumocytes has fibroblastic activity which aids in the reparative process.

  4. #4
    tehmina is offline Junior Member 510 points
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    answer is E because when type 1 pneumocytes are damaged they are replaced or repaired by pneumocyte type 2 always

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