Anatomy Osteomeatal complex refers to A Maxillary ostium, ethmoid infundibulum, hiatus semilunaris and frontal recess B Frontal recess, inferior meatus, sphenoid sinus C Hiatus semiluna ris maxillary ostium, sphenoeth moid recess D None of the given options 💡 Explanation Osteomeatal complex refers to ✓ Correct Answer: A. Maxillary ostium, ethmoid infundibulum, hiatus semilunaris and frontal recess