The perichondrium is a layer of dense irregular connective tissue which surrounds the cartilage of developing bone. It consists of two separate layers: an outer fibrous layer and inner chondrogenic layer. The fibrous layer contains fibroblasts, which produce collagenous fibers. The chondrogenic layer remains undifferentiated and can form chondroblasts or chondrocytes. Perichondrium can be found around the perimeter of elastic cartilage and hyaline cartilage, but not fibrocartilage.

Perichondrium is a type of Irregular Collagenous Ordinary Connective Tissue, and also functions in the growth and repair of cartilage.

Once vascularized, the perichondrium becomes the periosteum.

[edit] External links

• Iowa Histology Index 4/iv-05 - "Slide 12, Developing Bone (H&E). Examine cartilage (right) and its perichondrium (arrows)."
• UIUC Histology Subject 330

v • d • e Musculoskeletal system · connective tissue: bone and cartilage (TA A02.0 · GA 2.86-95) Cartilage perichondrium · fibrocartilage callus · metaphysis cells (chondroblast · chondrocyte) types (hyaline · elastic · fibrous) Bone Ossification intramembranous · endochondral Cycle osteoblast · osteoid · osteocyte · osteoclast Types cancellous · cortical Regions subchondral bone · epiphysis · epiphyseal plate/metaphysis · diaphysis · Condyle · Epicondyle Structure osteon / Haversian system · Haversian canals · Volkmann's canals · connective tissue (endosteum · periosteum) · Sharpey's fibres · enthesis · lacunae · canaliculi · trabeculae · medullary cavity · bone marrow Shapes long · short · flat · irregular · sesamoid bone and cartilage navs: anat/physio/dev, noncongen/congen/neoplasia, symptoms+signs/eponymous signs, proc

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