Loose connective tissue consists of a sparse extracellular matrix of hyaluronan and proteoglycans supported by a few collagen fibrils and elastic fibrils. If it has a few fibers, it is loose. The cells sit in a matrix made up of glycoproteins, fibrous proteins and glycosoaminoglycans , which have been secreted by the fibroblasts, and the major component of the matrix, is in fact, water. 1. Dense connective tissues are completely dominated by fibres. Loose Connective Tissue: Loose connective tissue is a type of connective tissue that surrounds blood vessels, nerves, and organs, holding the epithelium and organs in place. In addition to fibroblasts, the cell population is heterogeneous, including both indigenous and emigrant connective tissue cells (see Fig. 2. AREOLAR TISSUE 25. Connective tissue proper includes loose connective tissue and dense connective tissue. 1.“Dense Connective Tissue.” Wikipedia, Wikimedia Foundation, 27 Nov. 2018, Available here. Areolar tissue provides the support framework for epithelium. Loose and dense connective tissues are two important categories among them. Dense collagenous connective tissue has the tensile strength of collagen while dense elastic connective tissue has the elasticity of elastin. Jun 19, 2013 ( CC BY 3.0) via Commons Wikimedia, Lakna, a graduate in Molecular Biology & Biochemistry, is a Molecular Biologist and has a broad and keen interest in the discovery of nature related things, Difference Between Loose and Dense Connective Tissue, What are the Similarities Between Loose and Dense Connective Tissue, What is the Difference Between Loose and Dense Connective Tissue. Loose connective tissue is found around every blood vessel, helping to keep the vessel in place. Loose irregular connective tissue includes, but is not limited to, the superficial fascial sheath of the body directly under the skin, the muscle and nerve sheaths, and the bed and framework of the internal organs. Connective tissue has a wide variety of functions that depend on the types of cells and the different classes of fibers involved. Connective tissue, as the name implies, is a term given to several different tissues of the body that serve to connect, support and help bind other tissues in the body. The most characteristic feature of areolar and adipose tissues is their elasticity. I. loose connective tissue Start studying Connective Tissue: Loose and Dense. Loose connective tissue (LCT), also called areolar tissue, belongs to the category of connective tissue proper.Its cellular content is highly abundant and varied. Fibres are abundant and densely arranged in dense connective tissue, though it has the same cells, ground substance, and fibres as loose connective tissue. Dense connective tissue is reinforced by bundles of fibers that provide tensile strength, elasticity, and protection. The dense connective tissue is the type of connective tissue in which the main matrix component is the protein fibers. A connective tissue disease is any disease that affects the parts of the body that connect the structures of the body together. Fibrous connective tissues contain large amounts of collagen fibers and few cells or matrix material. Fibroblasts lie in rows between the collagen packages. Moreover, loose connective tissue can be found beneath epithelial tissue that lines the internal body surfaces, glands, and around small vessels. U can like my Facebook page ie. The dense irregular connective tissue contains collagen fibers that run in all directions. Functions: The pigmented connective tissue gives colour to the structures. The loose connective tissue is classified based on the type of protein fibers in the extracellular matrix and the weave of the fibers. The major cell type in the loose connective tissue is fibroblasts, which produce and maintain the fibres and ground substance of the matrix. Similarly to dense irregular connective tissue, loose irregular connective tissue has a multidimensional tissue orientation. Loose (areolar connective tissue) is the most abundant form of collagenous connective tissue. ? Thus, this is the key difference between loose and dense connective tissue. The structure of connective tissue varies from soft gel-like loose (areolar) connective tissue to hard bones. It mainly surrounds the blood vessels and nerves. Loose Connective Tissue: Loose connective tissue consists of many cells. Loose connective tissue is a type of connective tissue with loosely arranged collagen fibers. Dense Connective Tissue: Dense connective tissue produces tendon and ligaments by forming strong, rope-like structures. The loose connective tissue is more cellular, with smaller caliber collagen and elastic fibers than the coarser, dense irregular connective tissue. ? Loose Connective Tissue: Loose connective tissue is a type of connective tissue that surrounds blood vessels, nerves, and organs, holding the epithelium and organs in place. It occurs in small, elongated bundles separated by regions that contain ground substance. Since the dense connective tissue is resistant to stretch, it provides strength to organs and tissues. The dense connective tissue is classified based on the weave of the collagen fibers in the tissue. The location and the function of each type of loose connective tissue are described in table 1. Table 5.1 lists some of the subcategories of connective tissue proper, along with some of their characteristics and properties. In addition, they provide structural support and connect various tissues and organs in our body. “Dense Connective Tissue.” Histology of Connective Tissues – 4 Available here. Dense Connective Tissue: Dense connective tissue consists of numerous, thick fibers. It is usually located under the epithelia; which is the outer covering of the blood vessel including the esophagus, fascia between muscles, pericardial sacs, and other organs of the body. Dense connective tissue (dense regular, dense irregular, and elastic) What is the primary function of connective tissue? Connective tissue can further be broken down into three categories: loose connective tissue, dense connective tissue, and specializ … Loose connective tissue is found around every blood vessel, helping to keep the vessel in place. Hence, they are present in places where force is applied in one direction. It consists of loosely arranged fibres and cells. Presence of extracellular matrix with ground substances and fibres is the unique characteristic feature of this special tissue. Connective tissue mainly provides structural support to the soft organs. There are four types of basic tissues in the human body: epithelial tissue, connective tissue, muscle tissue, and nervous tissue. Both loose and dense connective tissues are made up of cells and extracellular matrix. The difference between regular connective tissue and irregular connective tissue. Both loose and dense connective tissues provide structural support and connect various types of tissues in the body. Similarities Between Loose and Dense Connective Tissue All rights reserved. On the basis of the … They are somewhat less flexible than loose connective tissue. The three types of loose connective tissue are areolar, adipose, and reticular tissues. The dermis of the skin is composed of loose connective tissue interfacing with an underlying dense irregular connective tissue. “411 Reg Dense-Irregular Dense” By OpenStax College – Anatomy & Physiology, Connexions Web site. Loose connective tissue is a category of connective tissue which is abundant in our body and has a few fibres in the matrix while dense connective tissue is a type of connective tissue that has abundant fibres in the matrix. Summary. Degree in Plant Science, M.Sc. Dense Connective Tissue: The three types of dense connective tissue are dense regular, dense irregular, and elastic tissue. Fibres and fibroblasts are compactly arranged. Picture 6: A closer look at dense regular connective tissues. The most abundant types of loose connective tissue are areolar and adipose. Whereas, dense connective tissue is less abundant, and it consists of many fibres in the matrix. It also contains fewer cells and less ground substance in comparison with the other type, loose connective tissue . Loose regular tissue has a fluid matrix and low proportions of arranged (regular) fibers. In dense irregular connective tissue the fibres do not show a clear orientation within the tissue but instead form a densely woven three-dimensional network. Dense connective tissue is enriched in collagen fibers with little ground substance. In the dense connective tissue, fibroblast cells and fibres are compactly packed. 28.1). What is the Difference Between Cuboidal and Columnar... What is the Difference Between Blood Brain Barrier... What is the Difference Between Villi and Microvilli. The connective tissue can be classified into three categories. Dense Connective Tissue. If it has a lot of fibers, it is dense. (CC BY 2.5) via Commons Wikimedia 2. The main fiber component of the dense connective tissue is the collagen fibers. It also helps to supply nutrients and oxygen to the epithelial tissue. – Attaches epithelium to the underlying tissues, – Provides oxygen and nutrients to the epithelium, – Forms the structural framework of the soft organs. Loose Connective Tissue: The three types of loose connective tissue are areolar, adipose, and reticular tissue. Dr.Samanthi Udayangani holds a B.Sc. To protect, support, insulate, and bind other tissues of the body. Loose Connective Tissue: Loose connective tissue consists of loosely arranged fibers. Areolar and adipose connective tissues also absorb the shocks to protect the internal body tissues. loose connective tissue; dense connective tissue; cartilage; bone tissue; liquid connective tissue; Loose connective tissue. 5. ADIPOSE TISSUE 27. Loose Connective Tissue: The major function of the loose connective tissue is to serve as a supporting matrix for the blood vessels, lymphatic vessels, nerves, muscle fibers, organs, and the skin. 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