Anatomy and Cell Biology 3309 Lecture Notes - Lecture 7: Dense Irregular Connective Tissue, Hyaline Cartilage, Chondroitin Sulfate
3 Dec 2014
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Document Summary
Cartilage is found throughout the body, and its function is based on its structure. Cartilage does not heal well because it is avascular. Three kinds of cartilage: hyaline cartilage: glassy smooth appearance in microscope; found in majority of joints, elastic cartilage: hyaline cartilage with elastic fibers and plates for flexibility and memory, fibrocartilage: hyaline cartilage embedded in d. r. c. t. 3-5% is cells, rest is ecm (water, collagen, proteoglycans, glycoproteins) General organization of cartilage tissue, specifically hyaline cartilage: avascular, chondrocytes surrounded by matrix, matrix around chondrocytes = territorial matrix (stains deeper blue because more sulfated. Gags in this area, more basophilic); just made by chondrocytes: matrix further out from chondrocytes = interterritorial matrix (stains lighter blue because less sulfated groups, surface covering of dense irregular connective tissue called perichondrium. In the chondrogenic layer, chondrocytes will undergo appositional growth (surface growth: note: bone is calcified and so cannot undergo interstitial growth major. Perichondrium layer they would not rub together as well.
