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( Synovial fluid)
Synovial fluid is a thick, stringy fluid found in the cavities of synovial joints. With its egg-like consistency (synovial comes from Latin for "egg"), synovial fluid reduces friction between the articular cartilage and other tissues in joints to lubricate and cushion them during movement. The inner membrane of synovial joints is called the synovial membrane, which secretes synovial fluid into the joint cavity. This fluid forms a thin layer (approximately 50 micrometres) at the surface of cartilage, but also seeps into microcavities and irregularities in the articular cartilage surface, filling any empty space [1]. The fluid within articular cartilage effectively serves as a synovial fluid reserve. During normal movements, the synovial fluid held within the cartilage is squeezed out mechanically (so-called weeping lubrication) to maintain a layer of fluid on the cartilage surface. Synovial tissue is composed of vascularized connective tissue that lacks a basement membrane. Two cells type (type A and type B) are present type B produce synovial fluid. Synovial fluid is made of hyaluronic acid and lubricin, proteinases and collagenases. Synovial fluid exhibits non-Newtonian flow characteristics. The viscosity coefficient is not a constant, the fluid is not linearly viscous,and its viscosity increases as the shear rate decreases.sdf Normal synovial fluid contains 3-4 mg/ml hyaluronan (hyaluronic acid), a polymer of disaccharides composed of D-glucuronic acid and D-N-acetylglucosamine joined by alternating beta-1,4 and beta-1,3 glycosidic bonds [2]. Hyaluronan is synthesized by the synovial membrane and secreted into the joint cavity to increase the viscosity and elasticity of articular cartilages and lubricate the surfaces between synovium and cartilage.[3]
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Synovial fluid Subcategories
Synovial fluid Articles
Synovial Fluid Replacement Therapy. by Terry O'Brien
Synovial Fluid is a clear thixotropic fluid, the main function of which is to serve as a lubricant in a joint, tendon sheath, or bursa; consists mainly of mucin with some albumin, fat, epithelium, and leukocytes; synovial f. also helps to nourish ...
Joint Health and Joint Healing by Frank Wilhelmi
It seems I have been granted a dose of humility; at a time in my life when I am graciously passing on the experience of staying fit into advanced age, I have been falling apart. Last time I wrote of the MRI of my shoulder revealing a loose body...
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