A. They provide structural support to type 1 cells
B. They secrete surfactant, a chemical that helps the alveoli stay open
C. They also participate in gas exchange
D. All of these
There are two types of alveolar cells that line the alveolar sacs in the lungs. Type 1 cells participate in gas exchange. What do type 2 cells do?
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- Category: Physiology MCQs
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