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Nasal cavities

The nasal cavity is a large air filled space above and behind the nose in the middle of the face. The nasal septum divides the cavity into two fossae. Each fossa is the continuation of one of the two nostrils. The nasal cavity is the uppermost part of the respiratory system and provides the nasal passage for inhaled air from the nostrils to the nasopharynx and rest of the respiratory tract.

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