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Frontal bone of the human skull, outer surface. The frontal bone forms the forehead, roof of the orbital cavities, and the nasal cavity. Labels: 1, frontal eminence; 7, roof of orbital cavitiy; 10, orbital arch.

Frontal Bone of the Human Skull

Frontal bone of the human skull, outer surface. The frontal bone forms the forehead, roof of the orbital…

The nasal cavity with openings of accessory sinuses. The sagittal section has been made a little to the right of the nasal septum sphenoidal and frontal septum. Portions have been removed from the turbinated bones in order to exhibit the orifices of the accessory cavities. The tongue has been almost completely removed to show the tonsils.

Nasal Cavity with Openings of Accessory Sinuses

The nasal cavity with openings of accessory sinuses. The sagittal section has been made a little to…

External wall of right nasal fossa, parts of the turbinates having been cut away to show the orifices of the sinuses which open into the meatuses.

External Wall of Nasal Cavity

External wall of right nasal fossa, parts of the turbinates having been cut away to show the orifices…

Outer wall of nasal fossa.

Outer Wall of Nasal Cavity

Outer wall of nasal fossa.