Connective tissue is classified into two subtypes which are soft and specialized connective tissue. It consists of an amorphous ground substance of mucopolysaccharides in which may be embedded white (collagenous), yellow (elastic), and reticular fibres, fat cells, fibroblasts, mast cells, and macrophages (see illustration). The meaning of the term has evolved over time. Dense connective tissue is enriched in collagen fibers with little ground substance. (adsbygoogle = window.adsbygoogle || []).push({}); Connective tissue is incredibly diverse and contributes to energy storage, the protection of organs, and the body’s structural integrity. In the abdominal cavity, most organs are suspended from the abdominal wall by a membranous band known as the mesentery, which is supported by connective tissue; others are embedded in adipose tissue, a form of connective tissue in which the cells are specialized for the synthesis and storage of energy-rich reserves of fat, or lipid. Although it is the most abundant and widely distributed of the primary tissues, the amount of connective tissue in a particular organ varies. Basic Components of Connective Tissues 3. This is similar to hyaline cartilage but is more elastic in nature. General Biology/Tissues and Systems/Connective Tissue. Areolar Connective Tissue Areolar connective tissue A variety of connective tissue consisting of a gel-like matrix combining strands of protein fibers (collagen and elastin) and so cells as fibroblasts, mast cells, macrophages, and fat cells. connective tissue weakness Bindegewebsschwäche {f}med. The individual bones of the skeleton are held firmly together by ligaments, and muscles are attached to bone by tendons, both of which are examples of dense connective tissue in which many fibre bundles are associated in parallel array to provide great tensile strength. The matrix is made up of fibrous proteins and a … It is composed of proteoglycans and cell adhesion proteins that allow the connective tissue to act as glue for the cells to attach to the matrix. Ground substance is active in the development, movement, and proliferation of tissues, as well as their metabolism. They are sometimes vary soft (Loose C.T. They help the connective tissue to stretch and recoil. It occurs in small, elongated bundles separated by regions that contain ground substance. 15,000x. Connective and supportive tissues are composed of cells, fibers, and amorphous ground substance in varying proportions. Connective tissue has three main components: Together the ground substance and fibers make up the extracellular matrix. Full text Full text is available as a scanned copy of the original print version. Biol. The major functions of connective tissue include: Connective tissues encompass a diverse array of tissue types that are involved in binding and supporting body structure and tissues. The water bond by the ground substance serves as the medium through which all nutrients and waste products must pass in transit between the blood and the parenchymal cells of the organs. It is comprised of cells and extracellular matrix, including fibers and ground substance. Connective tissue has three main components: cells, fibers, and ground substance. Objectives. Connective tissue contains many types of cells, primarily fibroblasts, which synthesise the extracellular matrix, collagen and ground substance, producing the structural framework of connective tissue. See more. It is found in the intervertebral discs of the bony vertebrae and knee meniscus. Dense irregular connective tissue: It has fibers that are not arranged in parallel bundles as in dense regular connective tissue. [PMC free article] Rinehart JF. Its principal constituents are large carbohydrate molecules or complexes of protein and carbohydrate, called glycosaminoglycans (formerly known as mucopolysaccharides). Ground substance definition, the homogeneous substance in which the fibers and cells of connective tissue are embedded. e.g. Fibroblasts produce collagen. STUDY. The most common cell found within connective tissue is the fibroblast. Ground substance • Noncellular material that separates cells; solid, semi-fluid or fluid • Made mainly of polymers of hyaluronic acid • Tissue fluid is loosely bound to ground substance  Forms medium for passage of materials throughout connective tissue  Exchange of metabolites with circulatory system Connective tissue, group of tissues in the body that maintain the form of the body and its organs and provide cohesion and internal support. Cartilage connective tissue has limited ground substance and can range from semisolid to a flexible matrix. Three types of fibers are found in connective tissue: Collagen: Collagen fibers are the strongest and most abundant of all the connective tissue fibers. The ground substance found in connective tissue is basically a network of macromolecules in a hydrophilic complex (glycosaminoglycans and proteoglycans) and glycoproteins that are the ones that help stabilize the extracellular matrix. It has less ground substance than loose connective tissue. 1. The hard outer layer of bones is composed of compact bone tissue, so-called due to its minimal gaps and spaces. Tissue that connects and binds organs/parts or other tissues to maintain their relative position and furnish support and security to the body is called connective tissue (C.T.) Connective Tissue Fibers and Ground Substance. Omissions? It also helps in defending against infection. The primary tissue of bone, osseous tissue, is a relatively hard and lightweight composite material, formed mostly of calcium phosphate in the chemical arrangement termed calcium hydroxylapatite. See more. Log in Sign up. The characteristics of the ground substance determine the permeability of the connective tissue layer to solutes and proteins. In some areas, the connective tissue is loosely organized and highly cellular; in others, its fibrous components predominate; and in still others, the ground substance may be its most conspicuous feature. Connective tissue is classified into following types: Connective Tissue proper. Adipose tissue is found in specific locations, referred to as adipose depots. Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. Ground substance A stellate mucous connective tissue cell is seen in the center of this electron micrograph from the umbilical cord. 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