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相关概念视频

Sutures of the Skull01:22

Sutures of the Skull

6.9K
The human skull is composed of several bones that come together to protect the brain and support the structures of the face. The junctions where these bones meet are called sutures.
Sutures are immobile joints between adjacent bones of the skull. The narrow gap between the bones is filled with dense, fibrous connective tissue that unites the bones. The long sutures located between the skull bones are not straight but instead follow irregular, tightly twisting paths. These twisting lines tightly...
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Cranial Bones: Lateral View01:27

Cranial Bones: Lateral View

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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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Bone Formation by Intramembranous Ossification01:29

Bone Formation by Intramembranous Ossification

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Intramembranous ossification is one of the two processes involved in the development of bones within an embryo. The flat bones of the face, most of the cranial bones, and the clavicles are formed via this process. During intramembranous ossification, the bones develop directly from sheets of undifferentiated mesenchymal connective tissue.
The process begins when mesenchymal cells in the embryonic skeleton gather together and differentiate into osteogenic cells, which then develop into ...
6.4K
Bone Formation by Endochondral Ossification01:24

Bone Formation by Endochondral Ossification

4.6K
Bone formation, or ossification, begins around the sixth to seventh week of embryonic development. Most bones develop from a cartilaginous template through the process of endochondral ossification. Cartilage formation begins when clusters of mesenchymal cells differentiate into chondrocytes. These chondrocytes proliferate rapidly and secrete an extracellular matrix that becomes encased in a membrane called the perichondrium. The resulting cartilage model provides a template that resembles the...
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Cranial Bones: Superior and Posterior View01:14

Cranial Bones: Superior and Posterior View

2.3K
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,...
2.3K
Changes in the Appendicular Skeleton with Age01:09

Changes in the Appendicular Skeleton with Age

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The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
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相关实验视频

Updated: Jul 19, 2025

Use of Micro X-ray Computed Tomography with Phosphotungstic Acid Preparation to Visualize Human Fibromuscular Tissue
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Use of Micro X-ray Computed Tomography with Phosphotungstic Acid Preparation to Visualize Human Fibromuscular Tissue

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一个关于形骨带的骨化模式的形态学研究.

Maria Piagkou1, Aliki Fiska2, George Tsakotos3

  • 1Department of Anatomy, School of Medicine, Faculty of Health Sciences, National and Kapodistrian University of Athens, 75 Mikras Asias Str., Goudi, 11527, Athens, Greece. mapian@med.uoa.gr.

Surgical and radiologic anatomy : SRA
|August 7, 2023
PubMed
概括
此摘要是机器生成的。

形骨带的骨化,包括pterygoalar (PTAL) 和pterygospinous (PTSL) 带,是常见的,特别是额外的. 这种知识对于靠近卵孔和部的外科手术至关重要.

关键词:
这是一种卡洛托基克利诺基因.互克利诺类药物 互克利诺类带 带 带 带 带骨化过程中的骨化.在Pterygoalar中使用.它们是状脊椎动物.塞拉·塞拉 (Sella Sella) 是一个头骨的头骨是一个人.形骨的形骨的骨头.

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Laminectomy for the Removal of Thoracic Ossification of the Ligamentum Flavum TOLF Using Ultrasonic and Conventional Osteotomes
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Laminectomy for the Removal of Thoracic Ossification of the Ligamentum Flavum TOLF Using Ultrasonic and Conventional Osteotomes

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相关实验视频

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Author Spotlight: PEGASOS Tissue Clearing Technique to Visualize Bone Remodeling
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Laminectomy for the Removal of Thoracic Ossification of the Ligamentum Flavum TOLF Using Ultrasonic and Conventional Osteotomes
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科学领域:

  • 人体解剖学 解剖学 解剖学
  • 头骨学 头骨学是一门学科.
  • 手术解剖学手术解剖学

背景情况:

  • 骨 (SB) 带,特别是外带 (ECRLs),如骨 (PTAL) 和骨 (PTSL) 带,以及内带 (ICRLs),如心肌关节带 (CCLL),前间关节带 (AICLL) 和后间关节带 (PICLL),在体解剖学中发挥作用.
  • 这些带的骨化会影响神经血管结构和手术进入骨底部.

研究的目的:

  • 为了确定骨化形骨外和内带的发生率,位置和特征.
  • 分析骨化模式与横向性,性别,年龄和骨化带同时存在的关系.

主要方法:

  • 分析了156个希腊成年人干燥头骨的两种性别和不同的年龄.
  • 骨化ECRL和ICRL的识别和分类,注明部分或完全的骨化.

主要成果:

  • 在57.05%的头骨中发现了骨化带,额外骨化更为普遍 (42.31%).
  • 欧洲RL主要是单边的 (30.13%),而国际RL在男性中更频繁 (31.1%).
  • PTAL (32.69%) 是最常发生骨化带,其次是CCLL (24.36%),PTSL (16.03%),PICLL (6.41%) 和AICLL (4.49%). 在60岁及以上的人群中,ECRL骨化更为常见 (52.8%).

结论:

  • 详细了解形骨形态和带骨化对于外科手术至关重要.
  • 了解这些骨化带的知识可以帮助尽量减少通过皮肤进行卵孔和细胞门的并发症.