IBIO 408 Study Guide - Final Guide: Reticular Fiber, Elastic Fiber, Vitreous Body
8 Jul 2019
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Document Summary
Tendons, ligaments, and deep layer of the skin are mostly collagen. Less visible in matrix of cartilage and bone. Thin collagen fibers coated with glycoprotein - lots of branching. Form framework of such organs as spleen and lymph nodes. Usually a gelatinous to rubbery consistency resulting from three classes of large molecules. Long polysaccharide composed of unusual disaccharides called amino sugars and uronic acid. Play important role of regulating water and electrolyte balance in the tissues. Hyaluronic acid viscous, slippery substance that forms an effective lubricant in joints and constitutes much of the vitreous body of the eyeball. Forms thick colloids that create strong structural bond between cells and extracellular macromolecules; holds tissues together. Mostly composed of a gel-like ground substance between cells. Types vary in fiber orientation: dense regular connective tissue, dense irregular connective tissue. Found in tissue sections from almost every part of the body. Nearly every epithelium rests on a layer of areolar tissue.
