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17. Maxillary sinus CT, coronal plane

The plane of the image is through the posterior orbits which taper to an apex. As in Image #15 the relationship between the floor of the orbit and the roof of the maxillary sinus is well demonstrated, as is the contiguity of the roots of the upper jaw teeth and the floor of the maxillary sinus. The nasal cavity is divided into right and left halves by the nasal septum. The superior, middle and inferior nasal conchae project off the lateral walls of the nasal cavity.