Cartilage Stocks List
Symbol | Grade | Name | % Change | |
---|---|---|---|---|
REGN | D | Regeneron Pharmaceuticals, Inc. | -0.63 | |
NHTC | F | Natural Health Trends Corp. | 0.51 | |
VCEL | F | Vericel Corporation | 1.62 | |
VTGN | F | VistaGen Therapeutics, Inc. | -1.96 |
Related Industries: Biotechnology Household & Personal Products
Symbol | Grade | Name | Weight | |
---|---|---|---|---|
IBB | D | iShares Nasdaq Biotechnology Index Fund | 8.77 | |
BBH | D | Market Vectors Biotech ETF | 8.55 | |
IBBQ | D | Invesco Nasdaq Biotechnology ETF | 7.48 | |
PBE | D | PowerShares Dynamic Biotech & Genome | 6.68 | |
FPX | B | First Trust IPOX-100 Index Fund | 6.59 |
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- Cartilage
Cartilage is a resilient and smooth elastic tissue, a rubber-like padding that covers and protects the ends of long bones at the joints, and is a structural component of the rib cage, the ear, the nose, the bronchial tubes, the intervertebral discs, and many other body components. It is not as hard and rigid as bone, but it is much stiffer and much less flexible than muscle.The matrix of cartilage is made up of chondrin.
Because of its rigidity, cartilage often serves the purpose of holding tubes open in the body. Examples include the rings of the trachea, such as the cricoid cartilage and carina.
Cartilage is composed of specialized cells called chondrocytes that produce a large amount of collagenous extracellular matrix, abundant ground substance that is rich in proteoglycan and elastin fibers. Cartilage is classified in three types, elastic cartilage, hyaline cartilage and fibrocartilage, which differ in relative amounts of collagen and proteoglycan.
Cartilage does not contain blood vessels (it is avascular) or nerves (it is aneural). Nutrition is supplied to the chondrocytes by diffusion. The compression of the articular cartilage or flexion of the elastic cartilage generates fluid flow, which assists diffusion of nutrients to the chondrocytes. Compared to other connective tissues, cartilage has a very slow turnover of its extracellular matrix and does not repair.
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