Air-filled spaces within the head that lighten the weight of the skull….
Search: paranasal sinuses
Sinuses located under the eyes and within the maxillary (cheek) bones….
Sinuses located behind the ethmoid bone in the skull.
The sinuses located at the centre of the base of the skull….
Sinuses located behind the forehead.
A cut along the edge of the nose to gain access to the nasal cavity and sinuses.
Surgical access to the nasal cavity or sinuses using a cut under the upper lip….