Piriform aperture
Appearance
(Redirected from Pyriform aperture)
Piriform aperture | |
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Details | |
Identifiers | |
Latin | apertura piriformis |
TA98 | A02.1.00.088 |
TA2 | 493 |
FMA | 53137 |
Anatomical terminology |
The piriform aperture, pyriform aperture, or anterior nasal aperture is a pear-shaped opening in the human skull. Its long axis is vertical, and narrow end upward; in the recent state it is much contracted by the lateral nasal cartilage and the greater and lesser alar cartilages of the nose.[1]
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.[1]
References
[edit]- ^ a b This article incorporates text in the public domain from page 196 of the 20th edition of Gray's Anatomy (1918)