Functional importance of maxillary sinus is______________?
Correct answer: B. All of the above
- A. Lightening of skull weight and production of bactericidal lysozyme to the nasal cavity
- B. All of the above
- C. Resonance of voice and enhancement of faciocranial resistance to mechanical shock
- D. Protects the brain against exposure to cold air by arresting air in sinus temporarily
Explanation
The maxillary sinus contributes to reduction of skull weight, voice resonance and facial shock absorption; its respiratory lining also contributes protective secretions such as lysozyme. Therefore, all the listed functions are included in the conventional description.
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