The alveolar epithelium in the lung is

(a) non - ciliated squamous 

(b) non-ciliated squamous

(c) ciliated columnar 

(d) ciliated squamous

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1 Answers

Correct Option (b) non-ciliated squamous

Explanation:

Tine wall of alveoli is highly vascularised. It is surrounded by flattened, non-ciliated squamous cells to increase the surface area. Simple columnar ciliated cells line the few portions of upper respiratory tract, oviduct, Fallopian tube and neurocoel of CNS, whereas non-ciliated columnar epithelium lines stomach, intestine, digestive glands and gall bladder.

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