Question

lining of respiratory tract is made up of ______​

Answer 1

Answer:

Epithelial tissue

Explanation:

Epithelial tissue or epithelium forms the outer covering of the skin and also lines the body cavity. It forms the lining of respiratory, digestive, reproductive and excretory tracts. They perform various functions such as absorption, protection, sensation and secretion.

Answer 2

Ans:

columnar epithelium✔

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$\large \bold{\red{explaination : }}$

Most of the respiratory passageways, from thenasal cavity through the bronchi, are lined by ciliated, pseudostratified columnar epithelium with goblet cells. Bronchioles are lined by simple cuboidal epithelium. (Lung alveoli, in contrast, are lined by very thin simple squamous epithelium.)

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