The human body is full of various types of connective tissue, the function of which is to bind together the other tissue of the body and give those tissues support. Types of Connective Tissues. Connective tissues are classified by the cells and fibers present in the tissue as well as the characteristics of the ground substance. Dense regular connective tissue, which forms organized structures, is a major functional component of tendons, ligaments and aponeuroses, and is also found in highly specialized organs such as the cornea. Dense regular connective tissue, found in structures such as tendons and ligaments, is characterized by collagen fibers arranged in an orderly parallel fashion, giving it tensile strength in one direction. Table 5.1 lists some of the subcategories of connective tissue proper, along with some of their characteristics and properties. •List the types of cells, fibers, and other extracellular matrix components found in connective tissues. There are more adipocytes than extracellular material in adipose. These fibers form an irregular network with spaces between the fibers. Especially with connective tissue slides, it is important to make sure you know what you are looking for, find those components, and draw only them in as simple a form as possible, usually with just lines and with minimal shadings or hatchings. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Collagen protein fibers are thick. Areolar connective tissue holds organs and epithelia in place, and has a variety of proteinaceous fibers, including collagen and elastin. There are three primary types of connective tissues and these are the proper connective tissues, supporting connective tissues, and fluid or liquid connective tissues. TYPES OF CONNECTIVE TISSUE Connective tissue can be classified as either connective tissue proper or specialized connective tissue. Nonetheless there is still a great variety among the subcategories of connective tissue proper. Connective Tissue (CT) Proper, and Special Connective Tissue, Cartilage, Bone, and Adipose Tissue Classical definition: Supporting tissue, minimum cell-to-cell contact; maximum extracellular space; connects blood vessels to other tissues; repair and replacement (scarring). All connective tissue consists of three main components: fibers (elastic and collagenous fibers),[1] ground substance and cells. Connective tissue (CT) proper consists of loose connective tissue (areolar tissue) and dense connective tissue, which has more and larger fibers than loose CT. Connective tissue is one of the four basic types of animal tissue, along with epithelial tissue, muscle tissue, and nervous tissue. In addition, they nourish and pillows epithelia. Some are classified as dense connective tissue proper and have a dense arrangement of extracellular protein fibers that give the tissue strength and toughness. Loose and dense irregular connective tissue, formed mainly by fibroblasts and collagen fibers, have an important role in providing a medium for oxygen and nutrients to diffuse from capillaries to cells, and carbon dioxide and waste substances to diffuse from cells back into circulation. Connective tissue proper synonyms, Connective tissue proper pronunciation, Connective tissue proper translation, English dictionary definition of Connective tissue proper. Connective tissue proper includes loose connective tissue and dense connective tissue. More extracellular material than cells. Connective tissue fills the spaces between organs and tissues, and provides structural and metabolic support for other tissues and organs. connective tissue proper: cells and fibers Readings: Chapter 4, In: Atlas of Functional Histology by Kerr; Chapter 5, Bloom and Fawcett: A Textbook of Histology ,12th Ed. There are seven types of connective tissues found in the body of people. [11], Type I collagen is present in many forms of connective tissue, and makes up about 25% of the total protein content of the mammalian body.[12]. OBJECTIVES Table 5.1 lists six categories of connective tissue proper. Both the ground substance and proteins (fibers) create the matrix for connective tissue. [9] Fibroareolar tissue is a mix of fibrous and areolar tissue. These are: Areolar Connective Tissue; Adipose Tissue; Dense Irregular Tissue; Dense Regular Tissue; Cartilages; Bones; Blood; 1. Connective tissue has a wide variety of functions that depend on the types of cells and the different classes of fibers involved. In the circle below, draw a representative sample of key features you identified, taking care to correctly and clearly draw their true shapes and directions. [15]:161 Elastic fibers, made from elastin and fibrillin, also provide resistance to stretch forces. Compared with most other kinds of tissue, connective tissue has few cells. The cells of connective tissue include fibroblasts, adipocytes, macrophages, mast cells and leucocytes. Connective tissue proper may be irregularly or regularly arranged. Connective tissue, group of tissues in the body that maintain the form of the body and its organs and provide cohesion and internal support. Adipose tissue gives "mechanical cushioning" to the body, among other functions. Reticular protein fibers are thin but form a web-like arrangement. [5][6] Connective tissue proper consists of loose connective tissue and dense connective tissue (which is further subdivided into dense regular and dense irregular connective tissues. There are many types of connective tissue disorders, such as: Please review the contents of the article and, undifferentiated connective tissue disease, "Mapping the Ligand-binding Sites and Disease-associated Mutations on the Most Abundant Protein in the Human, Type I Collagen", "Monitoring Tissue Engineering Using Magnetic Resonance Imaging", "Metabolic syndrome pathophysiology: The role of adiposetissue", Connective tissue atlas, University of Iowa, https://en.wikipedia.org/w/index.php?title=Connective_tissue&oldid=991316361, Articles needing additional medical references from June 2020, All articles needing additional references, Articles requiring reliable medical sources, Creative Commons Attribution-ShareAlike License, Bind bones and other tissues to each other. In proper connective tissues, the matrix is soft, less rigid and shows varying degree of toughness. [15]:171 They are found in the walls of large blood vessels and in certain ligaments, particularly in the ligamenta flava. Extensive protein fibers in the extracellular matrix. Connective tissue consists mainly of long fibers embedded in noncellular matter, the ground substance. The key identifying features to look for in each picture are: the type(s) of protein fibers present, the type of cells present, and whether there are significant amounts of ground substance present. I. Connective tissue proper has two subclasses: 1.loose and 2.dense. Connective tissue proper Connective tissue proper is found throughout the entire body. [15]:171, Mesenchyme is a type of connective tissue found in developing organs of embryos that is capable of differentiation into all types of mature connective tissue. 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