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在比较形态学研究中测试骨质学灵长类动物骨盆的重新关节的可靠性

Nicole Torres-Tamayo¹, Todd C Rae², Eishi Hirasaki³

¹Department of Anthropology, University College London, London, UK.

Anatomical record (Hoboken, N.J. : 2007)

|December 19, 2023

概括

为了3D研究,重组灵长类骨盆骨引入了最小的误差,保留了生物信号. 然而,具有大阴部间隙的物种可能会由于软组织的影响而显示低估的测量值.

科学领域:

古人类学古人类学.
比较解剖学的比较解剖学
三维形态测量 3D形态测量

背景情况:

研究灵长类的骨盆进化通常涉及重新articulating 脱节的骨头.
这种重新表达过程可能会引入影响生物信号的错误.

研究的目的:

评估重新关节错误对灵长类动物3D骨盆形状分析的影响.
为了确定重新表达技术是否会损害进化研究中的生物信号的完整性.

主要方法:

计算机断层扫描 (CT) 扫描灵长类人骨盆的虚拟重述 (Homo sapiens,Pan troglodytes,Macaca mulatta,Lepilemur mustelinus,Galago senegalensis,Nycticebus pygmaeus). 这是一个非常简单的方法.
"尸体" (解剖学定位) 骨盆与使用3D地标和线性测量重新构成的模型进行比较.
定量地标和重新表达错误的量化.

主要成果:

重构骨盆与尸体骨盆不同,但物种和个体之间的形状差异大于重构错误.
在骨盆形状的生物信号是强大的对重构噪声.
由于软组织的不确定性,在有大阴部间隙的物种 (例如,Galago senegalensis,Nycticebus pygmaeus) 中发生了中侧骨盆测量的低估.

结论:

灵长类骨盆骨的重新关节是对3D形态学的比较研究的可靠方法.
在骨盆进化研究中的生物信号在很大程度上不受重新articulation的影响.
优先使用解剖学连接的骨盆,以提高准确性,对于具有宽的阴部间隙的物种.

关键词:

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