Its rostral limit was present at the level of cranial face of first molar tooth and extends upto level of cribriform plate of
ethmoid bone (Fig.
It also articulates with the
ethmoid bone, the lacrimal bones and the sphenoid bone.
Deviations in nasal septae usually involve the cartilage and the perpendicular plate of the
ethmoid bone.
1999) Computed tomographic imaging to determine the frequency of anatomic variations in pneumatization of the
ethmoid bone.
The middle concha is formed by the medial part of the
ethmoid bone.
4) Pneumatization of the middle turbinate occurs as a part of the normal pneumatization process in the
ethmoid bone.
13,14) The infection spreads rapidly to adjacent sinuses and the orbit and continues into the cranium via the
ethmoid bone or orbital vessels.
