Semilunar Hiatus

The hiatus semilunaris (or semilunar hiatus) is a crescent-shaped groove in the lateral wall of the nasal cavity just inferior to the ethmoidal bulla. It is the location of the openings for the frontal sinus, maxillary sinus, and anterior ethmoidal sinus. It is bounded inferiorly and anteriorly by the sharp concave margin of the uncinate process of the ethmoid bone, superiorly by the ethmoidal bulla, and posteriorly by the ethmoidal process of the inferior nasal concha.

Read more about Semilunar HiatusSinus Drainage

Other articles related to "semilunar hiatus":

Semilunar Hiatus - Sinus Drainage
... The ostium for the maxillary sinus opens posteriorly in this groove and is the largest ostium within the semilunar hiatus. ...

Famous quotes containing the word hiatus: