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Nasal Cavity And Pharynx

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Description:
The nasal cavity warms and moistens the air and
filters it of impurities. The sinuses are hollow
areas, or cavities, in the bones of the skull
that are lined with mucous membranes and that
open into the nasal cavity. The sinuses provide
resonance for the voice. When the sinuses are
inflammed and filled with mucus the voice has a
different quality, The pharynx refers to the
part of the respiratory tract behind the nasal
cavity and mouth, in other words, the throat.

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