Search results
Results From The WOW.Com Content Network
The articular cartilage function is dependent on the molecular composition of the extracellular matrix (ECM). The ECM consists mainly of proteoglycan and collagens . The main proteoglycan in cartilage is aggrecan, which, as its name suggests, forms large aggregates with hyaluronan and with itself. [ 8 ]
The chondrocyte in cartilage matrix has rounded or polygonal structure. The exception occurs at tissue boundaries, for example the articular surfaces of joints, in which chondrocytes may be flattened or discoid. Intra-cellular features are characteristic of a synthetically active cell.
In biology, matrix (pl.: matrices) is the material (or tissue) in between a eukaryotic organism's cells. The structure of connective tissues is an extracellular matrix. Fingernails and toenails grow from matrices. It is found in various connective tissues. It serves as a jelly-like structure instead of cytoplasm in connective tissue.
Hyaline cartilage is located in the trachea, nose, epiphyseal plate, sternum, and ribs. [2] Hyaline cartilage is covered externally by a fibrous membrane known as the perichondrium. [2] The primary cells of cartilage are chondrocytes, which are in a matrix of fibrous tissue, proteoglycans and glycosaminoglycans. [2] [3]
Collagen Type II fibers are responsible for giving the future cartilage matrix its tensile strength. The structure of these fibers, like the majority of collagen fibers, forms a triple helix structure. [3] Proteoglycans resist the compression generally put upon cartilage and generate the swelling pressure responsible for stress shielding the ...
The cartilage cells or chondrocytes are contained in cavities in the matrix, called cartilage lacunae; around these, the matrix is arranged in concentric lines as if it had been formed in successive portions around the cartilage cells. This constitutes the so-called capsule of the space.
It is not an ordered structure. The acidic proteins play a role in the configuration of the sheets. The chitin is highly ordered and is the framework of the matrix. The main elements of the overall are: [17] The silk gel fills the matrix to be mineralized before the mineralization takes place. [17]
In cases like this, the body will form a scar in the area using a special type of cartilage called fibrocartilage. [2] Fibrocartilage is a tough, dense, and fibrous material that helps fill in the torn part of the cartilage; however, it is not an ideal replacement for the smooth, glassy articular cartilage that normally covers the surface of ...