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相关概念视频

Teeth01:15

Teeth

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The formation of teeth, also known as odontogenesis, is a complex process that begins in utero, around the sixth week of embryonic development. There are three stages to this process: the bud stage, the cap stage, and the bell stage.
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin...
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Evolution shapes the features of organisms over time, ensuring that they are suited for the environments in which they live. Sometimes, selection pressure leads to the rise of similar but unrelated adaptations in organisms with no recent common ancestors, a process known as convergent evolution.
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The lateral view of the cranium is dominated by temporal, sphenoid, and ethmoid bones.
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
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The superior view of the cranium shows the frontal and paired parietal bones.
The frontal bone is the single bone that forms the forehead. At its anterior midline, between the eyebrows, there is a slight depression called the glabella. The frontal bone also forms the supraorbital margin of the orbit. Near the middle of this margin is the supraorbital foramen, the opening that provides passage for a sensory nerve to the forehead. The frontal bone is thickened just above each supraorbital margin,...
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脊柱状灵长类灵长类动物中牙病理的变化

Claire A Kirchhoff1, Siobhán B Cooke2,3, Jessica C Gomez1,4

  • 1Department of Biomedical Sciences, Marquette University, Milwaukee, Wisconsin, USA.

American journal of primatology
|September 10, 2024
PubMed
概括

灵长类动物的牙病变与社会生态学有关,而不仅仅是年龄. 牙感染可能导致关节骨关节炎,而雄性由于竞争而表现出更高的病变率.

关键词:
非人类灵长类的灵长类.骨分析 骨分析创伤和病理学的创伤.

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科学领域:

  • 灵长类古病理学
  • 灵长类社会生态学
  • 比较解剖学的比较.

背景情况:

  • 头骨和牙病理在人类中得到了很好的研究,但在其他灵长类动物中不那么多.
  • 了解灵长类动物的牙病变,可以了解它们的健康和行为.
  • 社会生态因素可能会影响非人类灵长类动物的疾病患病率.

研究的目的:

  • 为了比较6种形形灵长类灵长类物种的牙病变患病率和病变模式.
  • 研究病变模式与社会生态变量之间的关系.
  • 探索牙科病态,关节骨关节炎和社会行为之间的潜在联系.

主要方法:

  • 对六种物种 (Nasalis larvatus,Colobus polykomos,Cercopithecus mitis,Macaca fascicularis,Theropithecus gelada,Papio anubis) 的成年头骨进行评估,以确定多种病变类型.
  • 与部接融合相关的损伤患病率分析作为年龄代理.
  • 性别和物种差异的统计比较,病理的同时发生,以及社会生态数据.

主要成果:

  • 病变发病率的性别差异仅在Papio anubis中观察到.
  • 在多种种类型中,澳门的虫损伤和脉腔暴露与其他病变有关,包括关节骨关节炎.
  • 雄性Papio anubis表现出较高的病变发病率,特别是在前牙和面部创伤中,可能与雄性竞争有关.

结论:

  • 灵长类动物中牙病变的患病率似乎受社会生态因素的影响,而不是仅仅由年龄影响.
  • 牙感染可能导致非人类灵长类动物的关节骨关节炎,反映人类的状况.
  • 骨损伤分析为灵长类社会生态学提供了宝贵的见解,并为人类健康提供了生物背景.