Respiratory system

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The nasopharynx and oropharynx are seperated by the?

Blue blood is rich in oxygen.

The nassal passages have what projecting from the surfaces of the epithelial cells?

Blue blood is rich in carbon dioxide.

What is an extension of the nasal cavity?

The upper repiratory tract includes all of the following except?

The Nassal Passages have what type of epitheial cells?

Another name for voice production is?