It is also of two types: white fibrous connective tissue … dense regular connective tissue. These fibers hold connective tissues together, even during the movement of the body. The dense regular connective tissue is further classified into two varieties: dense regular collagenous connective tissue and dense regular elastic connective tissue. Dense connective tissue, also called dense fibrous tissue, is a type of connective tissue with fibers as its main matrix element. This construction ideally resists tension and maximally transmits force. The latter is sub-divided into two categories — regular and irregular — that are classified based on the arrangement of the tissue's fibers. These structures are composed of densely packed collagen bundles in parallel array. Composed mainly of dense connective tissues, it serves as a tough, internal framework that surrounds muscles, bones, and nerves. Dense regular connective tissue fibers are parallel to each other, enhancing tensile strength and resistance to stretching in the direction of the fiber orientations. Transport of fluid, nutrients, waste, and chemical messengers is ensured by specialized fluid connective tissues, such as blood and lymph. Dense regular connective tissue fibers are parallel to each other, enhancing tensile strength and resistance to stretching in the direction of the fiber orientations. This is a factor contributing to the very slow healing of cartilaginous tissues. This slide contains a longitudinal section of a tendon, which is composed of dense regular connective tissue. Young athletes, dancers, and computer operators; anyone who performs the same movements constantly is at risk for tendinitis. Collagen fibers, while flexible, have great tensile strength, resist stretching, and give ligaments and tendons their characteristic resilience and strength. Dense Regular Connective 40x . This is probably ________. Histology Learning System [ Connective Tissue, dense regular connective tissue, transverse] Ligaments and tendons are … Elastic fibers are prominent in elastic tissues found in skin and the elastic ligaments of the vertebral column. In fluid connective tissue, in other words, lymph and blood, various specialized cells circulate in a watery fluid containing salts, nutrients, and dissolved proteins. Under the microscope, tissue samples appear clear. Reticular fibers are also formed from the same protein subunits as collagen fibers; however, these fibers remain narrow and are arrayed in a branching network. The brown adipocytes store lipids as many droplets, and have high metabolic activity. A. In some tissues, fibers crisscross and form a mesh. Unless otherwise noted, LibreTexts content is licensed by CC BY-NC-SA 3.0. Osteocytes, bone cells like chondrocytes, are located within lacunae. Among the four main basic types of animal tissues, connective tissue is one of the major types present. Structurally, all connective tissues contain cells that are embedded in an extracellular matrix stabilized by proteins. Loose connective tissue proper includes adipose tissue, areolar tissue, and reticular tissue. dense regular connective tissue which is found in tendons and ligaments, and is shown below. Protection is another major function of connective tissue, in the form of fibrous capsules and bones that protect delicate organs and, of course, the skeletal system. There is a small amount of epithelium on the top (black) and some adipose tissue at the bottom and lower left (very light). An easy and convenient way to make label is to generate some ideas first. Notice the dense regular arrangement of collagenous fibers. collagenous fibers & tendons have high tensile strength - dense regular connective tissue fotografías e imágenes de stock Dense regular connective tissue fibers are parallel to each other, enhancing tensile strength and resistance to stretching in the direction of the fiber orientations. An easy and convenient way to make label is to generate some ideas first. Protein fibers fall into three major groups: collagen fibers that are thick, strong, flexible, and resist stretch; reticular fibers that are thin and form a supportive mesh; and elastin fibers that are thin and elastic. Tendinitis is the inflammation of a tendon, the thick band of dense regular connective tissue that attaches a muscle to a bone. Dense Regular Connective Tissue Labeled | Creative Labels {Label Gallery} Get some ideas to make labels for bottles, jars, packages, products, boxes or classroom activities for free. View the University of Michigan Webscope (http://virtualslides.med.umich.edu/Histology/ By the end of the section, you will be able to: As may be obvious from its name, one of the major functions of connective tissue is to connect tissues and organs. dense regular tissue location. If the closely packed bundles of fibers are located in one direction, it is called regular; if oriented in multiple directions, it is referred to as irregular. Dense Regular Connective Tissue - Connective Tissue Labelled Diagram Learn vocabulary, terms, and more with flashcards, games, and other study tools. This arrangement gives the tissue greater strength in all directions and less strength in one particular direction. The many mitochondria in the cytoplasm of brown adipose tissue help explain its efficiency at metabolizing stored fat. 3. Heparin, also released as part of the inflammatory response, acts as an anticoagulant that prevents the formation of blood clots. While older adults are at risk for tendinitis because the elasticity of tendon tissue decreases with age, active people of all ages can develop tendinitis. Discuss how blood fulfills this role. Dense regular connective tissue fibers are parallel to each other, enhancing tensile strength and resistance to stretching in the direction of the fiber orientations. This is not where connective tissue roles end. A large number of capillaries allow rapid storage and mobilization of lipid molecules. Your opponent stands ready as you prepare to hit the serve, but you are confident that you will smash the ball past your opponent. In many sources, this type is listed as connective tissue proper; however, … Connective tissue is a heterogeneous tissue class with assorted cell shapes and tissue architecture. Macrophages, mast cells, lymphocytes, and plasma cells are found in connective tissue proper but are actually part of the immune system protecting the body. Connective tissue proper includes loose connective tissue and dense connective tissue. With proper rest and managed care, you will be back on the court to hit that slice-spin serve over the net. Review Sheet: Exercise 6 Classification of Tissue Name Date _____ 18. C. Dense Connective Tissue. Although repetitive motions are unavoidable in many activities and may lead to tendinitis, precautions can be taken that can lessen the probability of developing tendinitis. 3. Cardiovascular%20System/081-3_HISTO_40X.svs/view.apml) to explore the tissue sample in greater detail. When stimulated, macrophages release cytokines, small proteins that act as chemical messengers. Dense regular connective tissue provides connection between different tissues in the human body. Key Difference – Dense Regular vs Dense Irregular Connective Tissue. Dense Regular Connective Tissue- Attachment- Tendons and Ligaments- Fibroblasts. Loose connective tissue is found between many organs where it acts both to absorb shock and bind tissues together. That dull ache in the wrist that you ignored through the summer is now an unbearable pain. Dense Regular Connective Tissue This section of TENDON shows the orderly and linear organization of the collagen fibers of dense regular connective tissue. As fibroblasts are the most common cells in areolar tissue, the majority of the nuclei seen here are probably fibroblast nuclei. One of the main functions of connective tissue is to integrate organs and organ systems in the body. You can't see the rest of the fibroblast cell because it stains the same color as the collagen fibers. This type of connective tissue is found mostly in the reticular layer (or deep layer) of the dermis. This tissue gives rigid support as well as elasticity. It is thicker and stronger than loose connective tissue and forms a protective capsule layer around organs such as the liver and kidneys. Leukocytes, or white blood cells, are responsible for the defense of the organism against potentially harmful microorganisms or molecules. Dense regular connective tissue is mainly made up of type I collagen fibers. Unlike cartilage, bone tissue can recover from injuries in a relatively short time. Fibers interwoven in different directions to pull in different directions. In contrast, white fat adipocytes store lipids as a single large drop and are metabolically less active. Connective tissues separate and cushion organs, protecting them from shifting or traumatic injury. Function 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. identify the tissue. The three main types of cartilage tissue are hyaline cartilage, fibrocartilage, and elastic cartilage (Figure \(\PageIndex{6}\)). Blood and lymph are fluid connective tissues. 1) Dense Regular Connective Tissue • Dense fibers are arranged parallel to each other in the form of cords or bands • Examples: tendons, aponeurosis, ligaments. Its cellular content is highly abundant and varied. *Response times vary by subject and question complexity. Lymphatic capillaries are extremely permeable, allowing larger molecules and excess fluid from interstitial spaces to enter the lymphatic vessels. The LibreTexts libraries are Powered by MindTouch® and are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. Be able to recognize a basement membrane (or basal lamina) in sections or micrographs where the structure is conspicuously present and understand its functions. 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