Perichondrium
Perichondrium
Perichondrium (pronunciation: /ˌpɛrɪˈkɒndrɪəm/) is a layer of dense irregular connective tissue which surrounds the cartilage of developing bone. It is involved in the growth and repair of cartilage.
Etymology
The term "Perichondrium" is derived from the Greek words 'peri', meaning 'around' or 'surrounding', and 'chondros', meaning 'cartilage'.
Function
The perichondrium provides the cartilage with nutrients and is responsible for the rapid interstitial growth of the cartilaginous matrix, creating a larger cartilage mass. It also gives rise to chondrocytes, which are the cells that produce and maintain the cartilaginous matrix.
Structure
The perichondrium consists of two layers: an outer fibrous layer and an inner chondrogenic layer. The fibrous layer contains fibroblasts, which produce collagen and elastin fibers. The chondrogenic layer, closer to the cartilage, is responsible for the growth and development of new cartilage.
Related Terms
- Chondrocytes: The cells that produce and maintain the cartilaginous matrix.
- Cartilage: A flexible connective tissue found in many areas of the body.
- Connective tissue: A type of tissue that provides support and structure to other tissues and organs in the body.
- Collagen: The main structural protein in the extracellular matrix in the various connective tissues in the body.
- Elastin: A highly elastic protein in connective tissue that allows many tissues in the body to resume their shape after stretching or contracting.
External links
- Medical encyclopedia article on Perichondrium
- Wikipedia's article - Perichondrium
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