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The sinuses are a connected system of hollow cavities in the skull. The largest sinus cavities are about an inch across. Others are much smaller .The roof of each nasal cavity is formed in its upper third to one half by the nasal bone and more inferiorly by the junctions of the upper lateral cartilage and nasal septum. On the sides of the nasal cavity are three horizontal outgrowths called nasal conchae singular "concha" or turbinates..
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Upper Respiratory Tract Structural and Functional Anatomy Nose and Nasal Cavity. The nostrils, the two round or oval holes below the external nose, are the primary entrance into the human respiratory system []. Lying just after the nostrils are the two nasal cavities, lined with mucous membrane, and tiny hair like projections called cilia []..
Nasal Cavity What You Should Know
The Nasal Cavity. With its many functions, besides taking in air for the lungs, the nasal cavity is part of our respiratory system which is made up of two main divisions Upper respiratory tract. Nasal cavity the large space above and behind the nose.
The Nasal Cavity Structure Vasculature Innervation
The nasal cavity is the most superior part of the respiratory tract. It extends from the vestibule of the nose to the nasopharynx, and has three divisions Vestibule the area surrounding the anterior external opening to the nasal cavity..