之间的区别Compact Bone and Spongy Bone

这关键区别between compact bone and spongy bone is that紧凑的骨头是一个坚韧而沉重的骨头，形成了骨干of long bones while the spongy bone is a soft and light bone that forms theepiphysy长骨头。

骨骼是构成我们骨骼系统的体内硬器官。它们的目的是保护我们的身体，并为我们的身体提供结构和形状。而且，骨头很重要，因为它们产生red and white blood cells并为存储矿物质提供一个地方。从结构上讲，成人人体中有206个骨头，它们具有不同的形状和大小。人体最长的骨头是股骨（下腿中的两个骨头之一）。根据骨骼的性质，有两种类型的骨骼骨头。也就是说，它们是紧凑的骨头和海绵状骨头。这两个骨头彼此之间的不同，而它们在功能上也有所不同。紧凑的骨组织形成骨骼的外层，它们是骨骼较硬的。另一方面，海绵状骨组织形成骨骼的内层，它们是海绵状的软骨头。同样，在功能上也有几个差异。

CONTENTS

1。概述和关键差异
2。什么是紧凑的骨头
3。What is Spongy Bone
4。Side by Side Comparison – Compact Bone vs Spongy Bone in Tabular Form
5.Summary

什么是紧凑的骨头?

紧凑的骨位于长骨的外层。这是一个较硬的骨头。此外，紧凑的骨组织的间隙和空间很少（因此孔隙率很小）。较大的骨骼占据紧凑的骨骼。由于其低孔隙度，它也称为致密骨或皮质骨。

这building blocks of the compact bones are osteons. They are concentric structures that are organized in the extracellular matrix or the拉梅拉。Osteons tightly arrange within the compact bone tissue. Hence, it appears as a nonporous harder dense bone. In each osteon, there is a central canal which possesses blood vessels. Furthermore, compact bone contains yellow marrows that aid in fat storage. Structurally, compact bones have a higher calcium composition than the spongy bones. Generally, human skeleton comprises more than 80% of compact bones.

什么是海绵状骨头？

海绵状骨骼是一种多孔的软骨，使长骨的内部成为内部。它也称为取消骨头。海绵状骨骼的组成部分是小梁（类似spicule的结构）。这些小梁不拥有中央管道。

Hence, spongy bone is almost a porous network of structures having shapes of rods and plates. Spongy bones make up only 20% of the mass in a bone. However, their surface area is ten times larger than that of compact bones in the human skeleton. Also, compared to the compact bones, spongy bones are less dense and lighter and do not contain osteons. Furthermore, spongy bone has a low level of calcium. However, spongy bones contain red bone marrows that carry out hematopoiesis.

What are the Similarities Between Compact Bone and Spongy Bone?

• Compact bone and spongy bone are components of the osseous.
• 两者都是骨骼骨骼。
• Furthermore, both are structural bones.
• 因此，它们为生物提供形状和结构。
• 而且，它们支持肌肉的功能。

紧凑骨和海绵状骨有什么区别？

紧凑和海绵状的骨骼是人类骨骼的长骨中存在的两种类型的骨骼。紧凑骨是骨骼的圆柱形硬质外层。它们由骨组成，并且含有高水平的钙。另一方面，海绵状骨是在骨骼内部区域发现的立方体，密度较小的骨组织。它们是柔软的骨头，其中有很多空间。因此，紧凑骨和海绵状骨之间的关键区别在于它们的结构。

此外，紧凑的骨骼和海绵状骨之间的显着差异是，超过80％的骨骼骨骼是紧凑的骨骼，而只有20％是海绵状骨头。但是，海绵状骨骼的表面积比紧凑的骨骼更大。这是由于海绵状骨骼的小梁。

这below infographic illustrates the difference between compact bone and spongy bone as a side by side comparison.

摘要 - 紧凑的骨头与海绵状骨头

紧凑和海绵的骨头不是不同类型of bones but rather different parts of a single bone. Compact bone tissues are the shaft or the outer part of the long bone. It is dense and strong. Spongy bone tissues are found on the inside of a long bone. They are porous and have a sponge-like an appearance having holes in them. It is the part of the bone where blood is made. Here, the yellow bone marrow is found in the cavities of compact bone tissues whereas the red bone marrow is found in spongy bone tissues. Bone tissues are classified as compact or spongy based on proportions of mineralised and soft tissues. Furthermore, Haversian system is present in compact bone tissue, but it is absent in the case of spongy bone tissues. Thus this summarizes the difference between compact bone and spongy bone.

参考：

1.部长。“紧凑的骨骼结构。”生物学词典，生物学词典，2017年11月5日。在这里可用
2.温迪。“人类解剖学和生理实验室（BSB 141）。”管腔学习，管腔。在这里可用

图片提供：

1. Blausen.com工作人员（2014年）的“长骨结构”。“ Blausen Medical 2014的医学画廊”。Wikijournal of Medicine 1（2）。doi：10.15347/wjm/2014.010。ISSN 2002-4436。- 自己的工作，（CC由3.0）通过下议院维基梅迪亚
2。”Spongy bone – trabecules”（CC BY-SA 3.0）通过下议院维基梅迪亚