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Question

The alveolar epithelium in the lung is?

A
Non-ciliated columnar
B
Non-ciliated squamous
C
Ciliated columnar
D
Ciliated squamous
Solution
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Correct option is B. Non-ciliated squamous
Alveoli are groups of sac like terminals of each bronchiole lined by simple squamous non-ciliated epithelium, facilitating diffusion of gases. They increase the surface area and thus helps in more efficient gaseous exchange.
So, the correct answer is B.

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