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相关概念视频

Bone Disorders01:29

Bone Disorders

3.6K
Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
3.6K
What is the Skeletal System?01:02

What is the Skeletal System?

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Overview
52.9K
The Functions of the Skeletal System01:22

The Functions of the Skeletal System

3.9K
The most apparent functions of the skeletal system are support, protection, and movement. However, bone tissue also performs several other critical metabolic functions. For one, the bone matrix acts as a reservoir for a number of minerals important to the functioning of the body, especially calcium and phosphorus. These minerals, present in the bone tissue, can be released back into the bloodstream when required. Calcium ions, for example, are essential for muscle contractions and controlling...
3.9K
Essential Minerals for Bone Health01:31

Essential Minerals for Bone Health

4.0K
The minerals contained in all of the food we consume are essential for our organ systems. However, certain essential minerals, such as calcium, phosphorus, magnesium, manganese, and fluoride, largely affect bone health.
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
4.0K
The Bone Matrix01:18

The Bone Matrix

3.2K
Bone contains a relatively small number of cells entrenched in a matrix of collagen fibers that provide an adherent surface for inorganic salt crystals. Both components of the matrix, organic and inorganic, contribute to the unusual properties of bone. Without collagen, bones would be brittle and shatter easily. Without mineral crystals, bones would flex and provide little support. This can be observed by an experiment: when the minerals of a bone are dissolved by soaking the bone in...
3.2K
Bone Remodeling01:40

Bone Remodeling

38.3K
Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.
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相关实验视频

Updated: Jul 12, 2025

Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts
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Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts

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影响儿童的骨疾病中的骨材料属性

Adalbert Raimann1,2, Barbara M Misof2,3, Peter Fratzl4

  • 1Department of Pediatrics and Adolescent Medicine, Division of Pediatric Pulmonology, Allergology and Endocrinology, Medical University of Vienna, Vienna, Austria.

Current osteoporosis reports
|October 28, 2023
PubMed
概括
此摘要是机器生成的。

代谢和遗传性骨疾病会影响儿童的骨质和骨结构. 骨生长使这些儿科患者的骨组织发现的解释变得复杂.

关键词:
骨的物质是骨的物质.年轻人的骨头.矩阵矿化是什么意思代谢性骨疾病 代谢性骨疾病罕见的骨疾病 罕见的骨疾病

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Author Spotlight: Enhancing Accuracy and Reproducibility in Whole Bone Bending Tests
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相关实验视频

Last Updated: Jul 12, 2025

Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts
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科学领域:

  • 儿科内分泌学 儿科内分泌学
  • 骨生物学 骨生物学 骨生物学
  • 骨发育不良症 骨发育不良症

背景情况:

  • 代谢和遗传性骨疾病会影响骨质,矿物化,矩阵组织和多孔性.
  • 青春期骨质量受到骨生长过程的显著影响.
  • 了解这些因素对于诊断和管理儿科骨疾病至关重要.

研究的目的:

  • 要总结骨生长过程中骨建模和重塑之间的复杂相互作用.
  • 突出代谢和遗传性骨疾病的儿童复杂的骨组织特征.
  • 提醒临床医生在解释儿科患者骨发现的挑战.

主要方法:

  • 在线性骨生长过程中检查细胞事件和组织特征.
  • 对患有各种骨疾病的儿童进行的骨活检研究的分析.
  • 在矿物质含量高,低或正常的条件下对骨变化的比较.

主要成果:

  • 骨生长涉及不同的细胞事件和组织组织 (软骨,编织的骨,片状骨).
  • 观察到骨基质矿化和组织的疾病特异性变化.
  • 增长冲刺或增长迟缓可以放大或掩盖与疾病相关的骨变化.

结论:

  • 在生长过程中骨的建模和重塑是复杂的,并且取决于疾病.
  • 在患有代谢或遗传性疾病的儿童中解释骨组织发现需要仔细考虑生长影响.
  • 准确评估儿科骨疾病需要了解疾病和骨成熟之间的相互作用.