Description

The middle ethmoidal cells open into the central part of the middle meatus, and a sinuous passage, termed the infundibulum, extends upward and forward through the labyrinth and communicates with the anterior ethmoidal cells, and in about 50 per cent. of skulls is continued upward as the frontonasal duct into the frontal sinus.


Images

Download e-Anatomy

Mobile and tablet users, you can download e-Anatomy on Appstore or GooglePlay.

e-Anatomy on Appstore e-Anatomy on Googleplay