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相关概念视频

Cranial Bones: Lateral View01:27

Cranial Bones: Lateral View

2.6K
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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Cranial Bones: Superior and Posterior View01:14

Cranial Bones: Superior and Posterior View

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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,...
2.8K
Overview of the Skull01:08

Overview of the Skull

5.2K
The cranium (skull) is the skeletal structure of the head that supports the face and protects the brain. It is subdivided into the facial bones and the brain case, or cranial vault. The facial bones underlie the facial structures, form the nasal cavity, enclose the eyeballs, and support the teeth of the upper and lower jaws.
The cranial vault surrounds and protects the brain and houses the middle and inner ear structures. This cavity is bounded superiorly by the rounded top of the skull, which...
5.2K

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Updated: Sep 9, 2025

Analysis of Craniomaxillofacial Malformations in Mice Using Three-dimensional Microcomputed Tomography
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头形状:三维几何形态分析

İsmail Demircioğlu1, Yasin Demiraslan2, Ali Koçyiğit3

  • 1Department of Anatomy, Faculty of Veterinary Medicine, Harran University, Şanlıurfa, Türkiye.

Veterinary medicine and science
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PubMed
概括
此摘要是机器生成的。

这项研究使用3D几何形态测量分析了子头骨, 发现了基于性别的显著形状差异. 这些发现表明3D形态测量可以帮助确定子的性别.

关键词:
三维图像几何形态测量一个子头骨的形状

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科学领域:

  • 比较解剖学
  • 形态测量
  • 动物学

背景情况:

  • 了解形态在动物学和比较解剖学中至关重要.
  • 骨结构的性别差异可以提供进化和发育过程的见解.

研究的目的:

  • 分析新西兰子的三维 (3D) 头骨形状.
  • 为了确定性别对子头骨形状变化的影响.

主要方法:

  • 使用3D表面扫描创建子头骨模型.
  • 应用几何形态测量,包括Procrustes叠加和主要组件分析 (PCA).
  • 进行Procrustes ANOVA和分辨函数分析以评估尺寸和形状的二态性.

主要成果:

  • 主要组件分析 (PCA) 显示出显著的形状变化,主要在部,中间眼角和切口骨.
  • 统计分析显示雄性和雌性子的头骨形状有显著差异.
  • 性别之间没有发现头骨大小的显著差异.

结论:

  • 性别对新西兰的头骨形状有很大影响.
  • 三维几何形态测量是区分子头骨性别的一种可行的方法.
  • 这种技术在法医科学和野生动物管理中具有潜在的应用.