Anatomy and physiology of the nose and the paranasal sinuses

摘要

The nose and paianasal sinuses form a complex unit of different cavities at the entrance of the upper airway. The anatomic structures and the physiology of the nose and paianasal sinuses are tied up with one other and form a complete system with highly specific functions. These functions include air conditioning, filtering, and warming of inspired air and potentially forming a immunologic response for allergens, pollutants, and other particles to protect the delicate structures of the lower airway.