The Nasal Cavity

Fig. 37A.
Bones in the lateral wall of the nose. The base of the lateral wall formed by the maxilla.

Fig. 37B.
Palatine bone overlaps the  posterior part of the maxilla.

Fig. 37C.
The lacrimal bone and the inferior nasal concha are placed over the maxilla and the palatine bone.

Fig. 38.
Lateral wall of the nasal cavity is completed by the ethmoid bone. The parts shown in dotted line can be seen only when the middle concha is lifted off. Compare with Fig. 37C.

Fig. 39.
Main bones forming the nasal septum.

Fig. 40.
Lateral wall of the nasal cavity seen after removal of the medial plate of the ethmoid bone to expose the ethmoidal air sinuses.

Fig. 41.
Schematic diagram to show the positions of the openings of paranasal sinuses into the nasal cavity.

Fig. 42.
Scheme to show the parts of the   ethmoid bone.