The back ethmoid cells drain into a different spot (shown in green check). Their fluid exits above the middle turbinate and behind a part of the turbinate called the basal lamella (red check). The drainage from the front ethmoid sinuses is shown in blue check, the cheek (maxillary) sinus drainage in purple check, and the forehead (frontal) sinus drainage in black and white check.

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