Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.
Division of Anatomy School of Medical Sciences, University of Phayao, Phayao, Thailand.
Surg Radiol Anat. 2024 Sep;46(9):1495-1500. doi: 10.1007/s00276-024-03414-w. Epub 2024 Jul 29.
The nasal foramen is located in the nasal bone and for vessels passage to supply the nasal area. This project aimed to establish reliable references for the nasal foramina for future clinical applications.
The 72 dried skulls, 46 from the Division of Anatomy, University of Phayao, Thailand, and 26 from the Tulane University School of Medicine, USA, were collected and examined. The location, number, and sizes of nasal foramina were noted. The distances from each nasal foramen to the internasal suture, frontonasal suture, nasomaxillary suture, nasion, and rhinion were also recorded and used in the statistical analytical programs.
The most common type of nasal foramen in all skulls was type II (one external opening) at 65.97%, followed by type I (no foramen opening) at 20.83%, type III (two external openings) at 11.11% and type IV at 2.08% (three external openings). Nasal foramen subtypes in many of the Thai and American skulls were type IIb and type IIa. The diameter of a connecting nasal foramen was significantly larger than that of a non-connecting. Results from embalmed confirmed the passage of the external nasal artery through the nasal cavity.
The study shows no significant difference in nasal foramen morphometry between Thai and American. It illustrates recent data on type and subtype classifications and the location of a vascular passage through the nasal foramen. This is the first study of NF variations and their respective classifications.
鼻外孔位于鼻骨中，是血管进入鼻腔供应区域的通道。本研究旨在为未来的临床应用提供可靠的鼻外孔参考。
收集并检查了 72 个干颅骨，其中 46 个来自泰国帕尧大学解剖学系，26 个来自美国杜兰大学医学院。记录了鼻外孔的位置、数量和大小。还记录了每个鼻外孔到鼻内缝、额鼻缝、鼻颌缝、鼻根和鼻尖的距离，并在统计分析程序中使用。
所有颅骨中最常见的鼻外孔类型是 II 型（一个外部开口），占 65.97%，其次是 I 型（无孔开口），占 20.83%，III 型（两个外部开口），占 11.11%，IV 型（三个外部开口），占 2.08%。许多泰国和美国颅骨的鼻外孔亚型为 IIb 型和 IIa 型。连通鼻外孔的直径明显大于非连通鼻外孔的直径。防腐处理的结果证实了外鼻动脉穿过鼻腔的通道。
本研究表明，泰国人和美国人的鼻外孔形态学没有显著差异。它说明了关于类型和亚型分类以及血管通过鼻外孔位置的最新数据。这是对 NF 变异及其各自分类的首次研究。
