Hiatus semilunaris

The hiatus semilunaris is a semicircular shaped opening located on the lateral wall of the nasal cavity. It is a component of the ostiomeatal complex and serves as the opening for the frontal and maxillary sinuses and the anterior ethmoid air cells. It is inferior to the ethmoid bulla and the uncinate process forms its anterior border.

Anatomy: Head and neck
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Article information

rID: 57801
System: Head & Neck
Section: Anatomy
Synonyms or Alternate Spellings:
  • Semilunar hiatus

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Cases and figures

  • Normal ostiomeata...
    Figure 1: normal ostiomeatal complex diagram
    Drag here to reorder.
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