The perichondrium is a layer of dense irregular connective tissue which surrounds the cartilage of developing bone. Connective tissue is one of the four types of tissue in traditional classifications (the others being epithelial, Muscle, and Nervous tissue) Cartilage is a type of dense Connective tissue. It is composed of specialized cells called chondrocytes that produce a large amount of extracellular matrix It consists of two separate layers: an outer fibrous layer and inner chondrogenic layer. The fibrous layer contains fibroblasts, which produce collagenous fibers. A fibroblast is a type of cell that synthesizes and maintains the Extracellular matrix of many Animal tissues Collagen is the main Protein of Connective tissue in Animals and the most abundant protein in Mammals making up about 50% of the whole-body protein The chondrogenic layer remains undifferentiated and can form chondroblasts or chondrocytes. A chondroblast is a cell which originates from a Mesenchymal stem cell and forms Chondrocytes commonly known as Cartilage cells Chondrocytes (from Greek chondros cartilage + kytos cell are the only cells found in Cartilage.
Perichondrium is a type of Irregular Collagenous Ordinary Connective Tissue, and also functions in the growth and repair of cartilage.
External links
- Iowa Histology Index 4/iv-05 - "Slide 12, Developing Bone (H&E). The University of Iowa, is a major teaching service and Research university located on a campus in Iowa City Iowa, on the banks of the Iowa River Examine cartilage (right) and its perichondrium (arrows). "
- UIUC Histology Subject 330
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