Hierarquia Anatômica
Anatomia geral > Ossos; sistema esquelético > Esqueleto axial > Crânio > Abertura piriforme
Traduções
The anterior nasal aperture (piriform or pyriform aperture) is a heart- or pear-shaped opening it the skull. Its long axis is vertical, and narrow end upward; in the recent state it is much contracted by the lateral nasal cartilage and alar cartilages of the nose. It is bounded above by the inferior borders of the nasal bones; laterally by the thin, sharp margins which separate the anterior from the nasal surfaces of the maxilla; and below by the same borders, where they curve medialward to join each other at the anterior nasal spine.
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