Dense connective tissue: want to learn more about it? Dense regular connective tissue (DRCT) is divided into white fibrous connective tissue and yellow fibrous connective tissue, both of which occur in two forms: cord arrangement and sheath arrangement. Uruj Zehra MBBS, MPhil, PhD Dense regular connective tissue is mainly made up of type I collagen fibers. As with dense regular connective tissue, when elastic fibers running in random directions outnumber collagen fibers, the tissue is a dense irregular elastic connective tissue. It contains molecules such as proteoglycans and adhesive glycoproteins, and like collagen fibers are produced by fibroblasts. Connective Tissue Dense Connective Tissue, Cartilage, Bone, Joints. Dense Irregular Connective Tissue Function: able to withstand tension exerted in many directions; provides structural strength Location: fibrous capsules of organs and joints; dermis of the skin; submucosa of digestive tract The meninges surrounding the brain are also composed of dense tissue. A small amount of ground substance is present around dense regular connective tissue fibers and cells. Among the collagen fibers there is a network of elastic fibers as well, to limit the distensibility of the tissue. Write. Tendons are generally resistant to extension, but flexible, meaning that they can be easily distorted around bones and joints. Collagen fibers have good tensile strength and are therefore important in support. Similarly to dense irregular connective tissue, loose irregular connective tissue has a multidimensional tissue orientation. It supports the internal framework of organs such as liver, lymph nodes and spleen. Dense irregular connective tissue contains fibroblasts scattered amongst randomly oriented collagen fibers, whereas muscular tissues contain multinucleated muscle cells that are able to contract upon stimulation. Three stranded collagen molecules are packed together to form collagen fibrils and their alignment yield characteristic ultrastructural striations. They are responsible for the synthesis of collagen and extracellular matrix. • Also helps to prevent over-expansion of organs. This layer is characterized by thick bundles of collagen that are organized in various directions within the tissue. Collagen fibers are tough, thick fibrous proteins found in dense connective tissues. In some tissues, fibers crisscross and form a mesh. In dense irregular connective tissue, the direction of fibers is random. Tendons and ligaments attach to bones, and the role of dense regular connective tissue is to transfer forces to bones. General connective tissue is either loose, or dense, depending on the arrangement of the fibres. Aponeuroses are important in attaching bone to muscle. Reticular Connective Tissue: It is made up of reticular fibres. Histology - Dense irregular conective tissue View Related Images. The type I collagen fibers of the dense irregular connective tissue are surrounded by small amounts of ground substance. The old and inactive fibroblasts, also known as fibrocytes have reduced cytoplasm with few cell organelles and flattened heterochromatic nuclei. They are responsible for the synthesis of collagen and extracellular matrix. They are present close to the collagen fibers and appear as flattened, fusiform or spindle shaped cells. Lv 4. Dense regular connective tissue comprises structures such as ligaments and tendons, whilst dense irregular tissue is more widely distributed throughout the body. Since the loose and dense connective tissues are part of the connective tissue, people get confused regarding the main differences between them. Connective tissue is mainly a supporting tissue that binds and supports organs and the body as a whole. Our engaging videos, interactive quizzes, in-depth articles and HD atlas are here to get you top results faster. Submucosa (a middle layer) of digestive tract. Learn everything about the dense connective tissue with the following study unit: Collagen fibers are tough, thick fibrous proteins found in dense connective tissues. Dense connective tissue, is one of the types of connective tissue also referred to as dense fibrous tissue due to relative abundance of the collagen fibers. dense regular connective tissue function. Connective tissue function & location. Dense connective tissue, also called dense fibrous tissue, forms the body’s tendons, ligaments, joint capsules, and aponeuroses, as well as the dermis of the skin. Instead, its ECM is densely packed with collagen fibers. PLAY. Register now Ligaments and tendons are made of dense regular connective tissue. Learn. Dense connective tissue is often further divided into two main categories; dense irregular connective tissue and dense regular connective tissue. Dense irregular: Much of the dermis layer of the skin is composed of dense irregular connective tissue. There are a few elastin fibers to give the tissue some resiliency. Fibrocytes are fewer in number in circulation but have been shown to increase in quantity due to any pathology such as tissue damage, causing them to become activated and to display the properties of both fibroblasts and macrophages. and grab your free ultimate anatomy study guide! Connective tissues are the major supporting tissue of the body. Connective tissue is present throughout the human body and serves a variety of crucial functions beyond connecting body parts. 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