超越骨研究:在气候适应过程中对鼻气道功能进行计算分析
Markus Bastir1, Daniel Sanz-Prieto1,2,3, Manuel A Burgos2
1Paleoanthropology Group, Department of Paleobiology, National Museum of Natural Sciences-Spanish National Research Council, Madrid, Spain.
American journal of biological anthropology
|March 22, 2024
概括
人类鼻腔软组织表现出气候适应,来自更热,湿地区的个体的空调容量较低. 这挑战了以前的模型,表明外部和内部鼻子结构都对呼吸条件有所贡献.
科学领域:
- 人类解剖学 人类解剖学
- 生理学 生理学 生理学
- 人类学是人类学.
- 气候适应 气候适应
背景情况:
- 人类鼻腔解剖学的生态地理变异通常使用骨形态学来研究.
- 以前的研究集中在骨特征的气候适应,软组织形态在空调有限的分析.
- 鼻腔软组织在呼吸系统空调生理学中起着至关重要的作用.
研究的目的:
- 通过体内扫描和空气流模拟,分析鼻腔软组织的空调能力.
- 研究鼻软组织形态的生态地理变异及其与气候条件的关系.
- 为了比较不同人口和性别之间的空调容量.
主要方法:
- 在体内利用了来自柬埔寨,智利,俄罗斯和西班牙的146名成年人的计算机断层扫描.
- 通过计算流体动力学在灵感过程中进行了438次空气流模拟.
- 在冷干,热干和热湿条件下,分析了入流,功能和流出通道中的鼻腔软组织.
主要成果:
- 来自炎热潮湿地区的人,与来自寒冷地区的人相比,其空调容量明显较低.
- 观察到地峡区域 (输入通道) 和前功能通道的容量减少.
- 在任何鼻道或环境条件下,性别之间没有发现空调容量的显著差异.
结论:
- 这些发现支持前鼻软组织形态的气候适应模型,补充了骨研究.
- 结果挑战了仅将空调归因于鼻腔功能通道的模型.
- 外鼻和面部内软组织都会在吸气过程中有效地加热和加湿空气.
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