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What is Nostril

What is Nostril? Briefly explain it.

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Present within the nose and above the mouth it is reignited anteroposteriorly into vestibule, respiratory channel and olfactory organs. The cartilaginous nasal septum splits the vestibule into two lateral halves. The respiratory channel passes via scroll-like turbinal bones and passes by olfactory area into pharynx via a pair of posterior nare. It executes (a) filtration, (b) air-conditioning and (c) warming.

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