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vadim44 vadim44
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6 years ago
Paranasal sinuses ________.
A) produce mucus
B) act as extensions of and open into the nasal cavities
C) resonate during sound production
D) lighten skull bones
E) All of the answers are correct.
Textbook 
Human Anatomy

Human Anatomy


Edition: 9th
Authors:
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6 years ago
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