The middle nasal meatus lies lateral and caudal to the middle nasal turbinate.
Anatomy
The middle nasal meatus is bounded caudally by the inferior nasal turbinate. The paranasal sinuses drain into it via the frontal recess, specifically the Frontal sinus, the Maxillary sinus, and the anterior and middle ethmoid air cells. In the middle nasal meatus, the uncinate process partially covers the maxillary hiatus, which connects the maxillary sinus with the nasal cavity[^1].