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    Question ID:   9567         Current Version: 1
Question: What are nose and nasal cavities?
Category: Science > Biology
Keywords: cartilage, nose, nasal cavities
Type: what
Rating:(0 ratings)    Views: 539    Discussions: 0   In Watch Lists: 1  

 
    Answer:

The framework of the nose consists of bone and cartilage. Two small nasal bones and extensions of the maxillae form the bridge of the nose, which is the bony portion. The remainder of the framework is cartilage and is the flexible portion. Connective tissue and skin cover the framework.

Air enters the nasal cavity from the outside through two openings: the nostrils or external nares. The openings from the nasal cavity into the pharynx are the internal nares. Nose hairs at the entrance to the nose trap large inhaled particles. 

Source: National Cancer Institute

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