PARANASAL AIR SINUS
DR. SANDEEP SIDHU
MDS, ORAL PATHOLOGY
,SINUS
Sinus is a blind tract which can be
A cavity within the bone.
A dilated channel for venous blood
Any cavity having a relatively narrow
opening
,PARANASAL SINUS
, PARANASAL SINUSES
Paranasal sinuses are a group of four air filled spaces
that surround the nasal cavity.
Air containing cavities in the bone around the nasal cavity.
Four sinuses :-
1) Frontal.
2) Maxillary.
3)Spenoidal.
4)Ethmoidal.
DR. SANDEEP SIDHU
MDS, ORAL PATHOLOGY
,SINUS
Sinus is a blind tract which can be
A cavity within the bone.
A dilated channel for venous blood
Any cavity having a relatively narrow
opening
,PARANASAL SINUS
, PARANASAL SINUSES
Paranasal sinuses are a group of four air filled spaces
that surround the nasal cavity.
Air containing cavities in the bone around the nasal cavity.
Four sinuses :-
1) Frontal.
2) Maxillary.
3)Spenoidal.
4)Ethmoidal.
