这钥匙区别between periosteum and endosteum is that骨膜由外部纤维组成结缔组织层和内部成骨层,而内接层是覆盖骨骼内部表面的薄膜涂层。
Bones play an important role in anatomy and physiology. Out of the types of bones, the long bones are the most common bones found, and it is important to study the formation and development of the bone. Long bones have two main components; namely,紧凑的骨头和海绵状骨头。紧凑的骨头是长骨的致密和硬部分。海绵状的骨头是骨骼填充的骨腔,其硬性相对较小,并且包含红骨髓。骨骼的结构由解剖结构(例如近端和远端)组成epiphysy, spongy bone, and骨干由髓质腔,内接,骨膜和营养孔组成。
CONTENTS
1。概述和关键差异
2。什么是骨膜
3。What is Endosteum
4。骨膜和内皮之间的相似之处
5。并排比较 - 表格形式的骨膜与内静态
6.Summary
什么是骨膜?
Periosteum is the main outer lining of the bone. It constitutes an outer fibrous connective tissue layer and an inner osteogenic layer. Primarily, the fibrous layer composes dense irregular connective tissue. Accordingly, this connective tissue contains strong collagen fibres and fibroblast cells. Fibroblasts are special cells that involve in producing bone fibre. It is mainly a bone repair mechanism in response to injury.
Consequently, the main function of the fibrous layer is to connect the bones with other vital parts such as ligaments, joints and tendons. The fibrous layer is the most highly vascularized part of the periosteum and is a significant contributor to the blood supply of bone. Thus, it involves in providing nourishment to the growing bone. It also includes a rich neural network. The deep portion of the outer layer contains a fibroelastic layer that contributes to maintaining elasticity of the bone.
此外,成骨层在骨钙化和重塑中起重要作用。它由干细胞和骨组织表面的成骨细胞组成。成骨层的存在导致将硬度引入骨骼。因此,成骨层构成了骨骼的困难部分。成骨细胞是参与钙化过程的细胞。通过骨钙化过程,骨膜通过成骨细胞的钙沉积参与骨骼重塑和发育过程。
什么是内属?
Endosteum is a thin, soft, connective tissue that lines the cavity of long bones. Hence, it also acts as the coating for the compact inner bone and the trabeculae of the spongy tissue. The characteristic feature of the endosteum is the presence of osteoprogenitor cells. These祖细胞upon maturity differentiate into mature osteoblasts.
此外,这些祖细胞还参与格式化骨基质。Endoteum还包含负责血细胞产生的造血干细胞。
基于它的位置,内皮层有三种主要类型。
- 皮质内接抑制剂 - 在皮质骨内壁上发现的内接和骨髓腔的边界。
- Osteonal endosteum – located on the inner walls of the osteonal canal of the compact bone.
- Trabaculae Endosteum - 小梁的内壁。
此外,内皮主要涉及骨骼重塑,生长和发育过程。
骨膜和内接到之间有什么相似之处?
- 骨膜和内接抑素是骨结构的两个主要部分。
- 这y are located in the diaphysis region of the bone.
- 同样,两者都参与骨骼重塑和发育。
- 此外,它们通过钙化过程有助于骨骼的硬度。
What is the Difference Between Periosteum and Endosteum?
Periosteum and endosteum are two main layers of the bones, especially in the diaphysis region. Periosteum lines the outer surface of the bone and inner osteogenic layer. On the other hand, endosteum forms the inner thin membranous coating of the bone cavity. Therefore, this is the key difference between periosteum and endosteum. Furthermore, periosteum consists of two layers; fibrous layer and connective tissue layer while the endosteum consists of one layer; connective tissue layer. Hence, it is also a difference between periosteum and endosteum.
此外,骨膜和内接层的厚度也不同。因此,骨膜的厚度约为0.01毫米,而内接的厚度约为0.1-0-5 mm。同样,骨膜和内接抑素之间的另一个区别在于,骨膜具有成熟的成骨细胞为细胞类型,而内皮层具有成纤维细胞和造血细胞。以下关于骨膜和内接层之间差异的信息图显示了有关这些差异的更多详细信息。
Summary – Periosteum vs Endosteum
骨膜和内接抑素在骨骼损伤后骨骼重塑和修复骨骼的修复过程中非常重要。这是一个连续的过程,在增长阶段很快,并降低了其比老化过程的速度。因此,骨膜主要涉及钙沉积并为生长骨提供营养。因此,它涉及保持骨骼的完整性。另一方面,内壁的内接层涉及通过祖细胞产生成骨细胞以启动骨骼发育过程。因此,这是骨膜和内接的差异。
参考:
1。Dwek, Jerry R. “The periosteum: what is it, where is it, and what mimics it in its absence?” Skeletal Radiology, Springer-Verlag, Apr. 2010.在这里可用
2.“内皮。”。人体解剖学。在这里可用
图片提供:
1.“ 624紧凑型骨新图”撰写的OpenStax College - 解剖与生理学,连接网站。2013年6月19日。(CC由3.0)通过下议院维基梅迪亚
2。“606年松质骨”OpenStax大学解剖学与Physiology,连接网站。2013年6月19日。(CC由3.0)通过下议院维基梅迪亚
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