The alveoli of lungs are lined by

Simple epithelium

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Squamous epithelium

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Cuboidal epithelium

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Columnar epithelium

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Solution

The correct option is B Squamous epithelium
Alveoli are minute air-filled sac in the found in the lungs of vertebrates. The alveoli are regions for the exchange of oxygen and carbon dioxide gases during respiration. These sacs is covered in a mesh of tiny blood vessels or capillaries which connect to a network of arteries and veins. The cells that line the alveoli are squamous epithelium cells.

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Similar questions

Alveoli of lungs are lined by _____________ epithelium:

Alveoli of lungs are lined by the _______ epithelium.

	I		II
(a)	Simple squamous epithelium	(i)	Ureters
(b)	Simple cuboidal epithelium	(ii)	Epididymis
(c)	Nonciliated simple columnar epithelium	(iii)	Lining of alveoli of lungs
(d)	Transitional epithelium	(iv)	Lining of thyroid vesicles
(e)	Pseudostratified nonciliated columnar epithelium	(v)	Mucosa of stomach and intestine

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