A newborn is in respiratory distress and requires ventilation. Tests reveal that he does not pro-duce surfactant due to the absence of:
a. mucus-producing cells.
b. type II alveolar cells.
c. alveolar macrophages.
d. goblet cells.
ANS: B
Surfactant is produced by the type II alveolar cells. Surfactant is not produced by mu-cus-producing cells, alveolar macrophages, or goblet cells.
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