Rhinology/Allergy pages
Sinonasal anatomy
the frontal sinuses are situated above the eyes
The cribriform plate allows olfactory fibers to enter the nose from the brain above
The septum divides the nasal cavity into two sides. The turbinates are mucosally-lined shelves of bone that project into the nose to moisten the air as it is inspired. The turbinates are termed inferior, middle superior, and (rarely) supreme based on their location relative to one another.
The maxillary sinuses sit below the eyes and above the upper teeth. They are the largest of the sinuses.
The ethmoid air cells are located between the eyes. They consist of anterior and posterior cells. Numerous additional names are applied to these cells including: haller, agger nasi, supraorbital, and onodi.
The osteomeatal complex is an ill-defined region containing the outflow tracts of the anterior ethmoid cells, maxillary sinus, and, frequently, the frontal sinus. The uncinate process hoods over the region.
