Sinus
Of cavity.
Any of various air-filled cavities especially in the bones of the skull.
This concept's ID is @1~28717
Contains
- maxillary sinus
One of a pair of sinuses forming a cavity in the maxilla.
- paranasal sinus
Any of the paired sinuses in the bones of the face adjacent to the nasal cavity...
- ethmoid sinus
A sinus of the meatuses of the nasal cavity (behind the bridge of the nose).
- frontal sinus
One of a pair of cavities in the frontal bone.