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Squamous cells forming up to 97 percent of the alveolar surface are type:

AV alveolar
BX alveolar
CL alveolar
DI alveolar
Answer & Solution
Correct answer: D. I alveolar
1. These cells are extremely thin for gas exchange. 2. They cover almost the entire alveolar surface. 3. They are type I alveolar cells. _Source: OpenStax Anatomy and Physiology 2e, Chapter 22, The Respiratory System._
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