The sinuses are hollow air spaces inside the bones of your face and skull. There are several groups of them. Here is a side view of the main computer model. The forehead sinus (frontal sinus) is shown in black check, the cheek sinus (maxillary sinus) in red, the front ethmoid sinuses in green, the back ethmoid sinuses in purple, and the deep sinus behind the eyes (sphenoid sinus) in yellow.

Introduction 1
The Lab
Sinuses Side
Sinuses Front
Mid-Sagittal
Septum
Deviated Septum
Deviated Septum
Inferior Turbinate
Inferior Turbinate
Middle Turbinate
Concha Bullosa
Middle Turbinate
Middle Turbinate
Airflow
Airflow
Frontal
Frontal
Drainage
Drainage
Drainage
Drainage
Sphenoid
Sphenoid
Maxillary
Maxillary
Maxillary
Mucous Flow
Ostio-Meatal
Ostio-Meatal
Polyps
Polyps
Windows
Windows
Endoscopic
Endoscopic
Turbinate Reduction
Turbinate Reduction
Cool Picture