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首页> 外文期刊>Quaternary International >Internal structural properties of the humeral diaphyses in an early modern human from Tianyuan Cave, China
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Internal structural properties of the humeral diaphyses in an early modern human from Tianyuan Cave, China

机译：中国天元洞穴早期现代人类肱骨隔膜的内部结构特征

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摘要

Since the cross-sectional geometries of long bone diaphyses preserve evidence of a bone's mechanical loading history, examination of a bones' cross-sectional properties can be used to inform its loading history. Here, we use a novel colormap method to quantitatively visualize the topography of cortical bone, second moment of areas, and polar moment of areas along the humeral diaphyses to shed light on the potential manipulative behaviors of the Tianyuan 1 fossil human (Homo sapiens). We compare both humeri of Tianyuan 1 to two Holocene Chinese populations. Our results show that the standardized cortical bone thickness, standardized second moment of areas, and standardized polar moment of areas of Tianyuan 1's right humeral diaphysis are greater than those of the left diaphysis. This evidence supports the hypothesis that the individual was right-handed. The greater medial and lateral cortical reinforcement in the right midshaft humerus, relative to that of the left humerus, may be related to increased unilateral physical activity of the right arm. Unlike the lower humeral asymmetry of recent human agriculturalists, the relatively higher bilateral asymmetry, combined with the relatively larger femoral robusticity, indicate that Tianyuan 1 lived an activity lifestyle compared to the agriculturalists investigated in this study. The bilateral asymmetry of the right and left humeri may be more informative for discriminating between fossil and recent modern human samples than cortical thickness or rigidity values in only one side. This study also indicates that upper limb internal structures can provide important information for inferring the behavior of ancient hominins.
机译：由于长骨硅片的横截面几何形状保留了骨骼机械负载历史的证据，因此可以使用对骨骼的横截面特性的检查来告知其装载历史。在这里，我们使用一种新的Colormap方法来定量地可视化皮质骨的形貌，第二矩的区域，沿着肱骨隔膜的极性时刻，沿着天元1化石人（HOMO SAPIENS）的潜在操纵行为脱光。我们比较天元的哈比尔西1到两个全新世群体。我们的研究结果表明，标准化的皮质骨厚度，标准化的第二时刻，天元1的右肱骨态干地区的标准化极性时刻大于左骨干。这证据支持个人是右撇子的假设。右侧肱骨肱骨较大的内侧和横向皮质加强，相对于左肱骨，可能与右臂的单侧身体活动增加有关。与近期人类农业学家的较低肱骨不对称不同，双侧不对称性相对较高，与相对较大的股本强度相结合，表明天元1与本研究中调查的农业学家相比生活生活方式。右侧和左侧肱骨的双侧不对称可能更有信息，可以更有信息，而不是仅在一侧的皮质厚度或刚度值之间辨别化石和最近的现代人类样品。本研究还表明上肢内部结构可以提供推断古代母素的行为的重要信息。

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  • 来源
    《Quaternary International》 |2021年第30期|107-118|共12页
  • 作者

    Wei Pianpian; Zhao Yuhao; Walker Christopher S.; He Jianing; Lu Xiaoyu; Hui Jiaming; Shui Wuyang; Jin Li; Liu Wu;

  • 作者单位

    Fudan Univ Sch Life Sci Dept Anthropol & Human Genet Minist Educ Key Lab Contemporary Anthropol Shanghai 200433 Peoples R China|Univ Witwatersrand Fac Sci Ctr Explorat Deep Human Journey Johannesburg South Africa;

    Chinese Acad Sci Key Lab Vertebrate Evolut & Human Origins Inst Vertebrate Palaeontol & Palaeoanthropol Beijing 100044 Peoples R China|Univ Chinese Acad Sci Beijing 100049 Peoples R China;

    Univ Witwatersrand Fac Sci Ctr Explorat Deep Human Journey Johannesburg South Africa|North Carolina State Univ Coll Vet Med Dept Mol Biomed Sci Raleigh NC USA|Duke Univ Dept Evolutionary Anthropol Durham NC USA;

    Peking Univ Sch Archaeol & Museol Beijing 100871 Peoples R China;

    Jurass Museum Fontenais 21 CH-2900 Porrentruy Switzerland|Univ Fribourg Dept Geosci Earth Sci Chemin Musee 6 CH-1700 Fribourg Switzerland;

    Chinese Acad Sci Key Lab Vertebrate Evolut & Human Origins Inst Vertebrate Palaeontol & Palaeoanthropol Beijing 100044 Peoples R China|Univ Chinese Acad Sci Beijing 100049 Peoples R China;

    Beijing Normal Univ Coll Informat Sci & Technol Beijing 100875 Peoples R China;

    Fudan Univ Collaborat Innovat Ctr Genet & Dev Sch Life Sci State Key Lab Genet Engn Shanghai 200433 Peoples R China|Fudan Univ Human Phoneme Inst Shanghai 200433 Peoples R China;

    Chinese Acad Sci Key Lab Vertebrate Evolut & Human Origins Inst Vertebrate Palaeontol & Palaeoanthropol Beijing 100044 Peoples R China;

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  • 正文语种 eng
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  • 关键词

    Diaphyseal cortical thickness; Bone rigidity; Morphometric mapping; Upper limb; Late pleistocene; East asia;

    机译：透析性皮质厚度;骨刚度;形态学映射;上肢;晚熟;东亚;

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