ethmoidal sinus การใช้

The openings to the posterior ethmoidal sinuses exist under the superior meatus.
The anterior ethmoidal cells of the ethmoidal sinus open into the front part of the infundibulum as well.
It is the location of the openings for the frontal sinus, maxillary sinus, and anterior ethmoidal sinus.
Maxillary sinusitis is common due to the close anatomic relation of the frontal sinus, anterior ethmoidal sinus and the maxillary teeth, allowing for easy spread of infection.
The OA continues anteriorly, giving off the anterior ethmoidal artery which enters the nose after traversing the anterior ethmoidal canal and supplies the anterior and middle ethmoidal sinuses as well as the frontal sinus and also enters the cranium to supply the meninges.