Osteomeatal complex (OMC) connects-
1.Nasal cavity with maxillary sinus
2.Nasal cavity with sphenoid sinus
3.The two nasal cavities
4.Ethomoidal sinus with ethmoidal bulla
sol:
Osteomeatal complex is a narrow anatomical region consisting of :-
Multiple bony structures (middle turbinate, uncinate process, Bulla ethmoidalis).
Air spaces (frontal recess, ethmoidal infundibulum, middle meatus)
Ostia of anterior ethmoidal, maxillary and frontal sinuses → therefore, connects theses sinuses to nasal cavity.