Pyriform aperture

The pyriform or nasal aperture, is the pear-shaped bony inlet of the nose formed by the nasal and maxillary bones. It forms the boundary between the anterior nasal vestibule (of the nasal cavity) and the posterior nasal cavity proper. The maxillary spines mark the inferior margin of the pyriform aperture.

See also

Anatomy: Head and neck
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Article information

rID: 21316
System: Head & Neck
Section: Anatomy
Tag: stub, refs
Synonyms or Alternate Spellings:
  • nasal aperture

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