What is Compact Bone?
Compact bone, also known as cortical bone, forms the outer layer of long bones. It is dense, solid, heavy, tough, and compact in nature. Bones are able to sustain mechanical stress, support weight, and resist bending or breaking because of the strength and stiffness that come from being compact. Few of its characteristics are listed below:-
- It is composed of concentric layers of matrix known as lamellae.
- It contains the Haversian (longitudinal) and Volkmann (transverse) canals which allow blood vessels and nerves to travel through them.
- It contains yellow bone marrow which stores adipose tissue or white fat. It forms the diaphysis or shaft of long bones.
Difference Between Compact And Spongy Bones
Compact and Spongy Bone are two primary types of bone tissues. Compact bone forms the outer layer of long bones and provides strength, support, and protection. On the other hand, spongy bone forms the inner layer of flat and irregular bones and contributes to shock absorption, reducing weight, and facilitating metabolic exchange. These bone structure differences are the reason for the classification.
Table of Content
- Differences between Compact and Spongy Bone
- What is Compact Bone?
- What is Spongy Bone?