(thin-section) blood and lymph. Ligaments and tendons are made of dense regular connective tissue, but in ligaments not all fibers are parallel. Adipose connective tissues are large fat located underneath the skin. This type of tissue is what forms the tendons and ligaments of the human body. The collagen fibers are densely packed together and arranged in parallel to each other. hyaline, elastic, fibrocartilage. Many different colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs. The main difference between elastic cartilage and elastic connective tissue is that the elastic cartilage contains a polysaccharide called chondroitin sulfate whereas the elastic connective tissue does not contain chondroitin sulfates. This type of tissue contains a dense woven network of collagenous (and some elastic) fibres in a viscous matrix. regular, irregular (sometimes elastic) cartilage tissue types. This section of dense regular collagenous tissue is from the tendon of a skeletal muscle. It is made primarily of parallel collagen fibers, a few elastic fibers and the major cell type is the fibroblast. From: Douglas P. Dohrman and TAMHSC Faculty 2012 Structure and Function of Human Organ Systems, Histology 299 dense regular elastic connective… - know what the three types of dense CT are (regular, irregular, elastic), - know that the main protein in the ECM is collagen, - know the visible differences between dense regular and irregular CT, - know that these tissues are populated by fibroblasts, - know where you find dense regular CT and its functions, - know where you find dense irregular CT and its functions, - know where you find dense elastic CT and its functions. The collagen fibers travel in all directions which is vital to this tissue's function. © 2021 SOPHIA Learning, LLC. 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. The collagen fibers are stacked on one another in a neat parallel array. Bone, compact, ground c.s. Reticular connective tissue. Institutions have accepted or given pre-approval for credit transfer. Dense regular connective tissue is mainly made up of type I collagen fibers. Dense irregular connective tissue also contains fibroblasts and collage but differs in its arrangement. Dense irregular CT is used to form the capsules that surround our internal organs such as the pericardium or the renal capsule. Answer: 1. This strong tissue is typically found in the tendons of muscles. However, not all connections are by dense regular connective tissues. This makes it the ideal tissue to line the walls of the bronchiole tubes so that the lungs can deflate after inhaling and to line the walls of large arteries so that these vessels can pulse blood through the body. Dense regular connective tissue is also known as Regular Fibrous Connective Tissue and it is a type of general connective tissues consisting of type I collagen bundles that are arranged according to a definite pattern in which the fibers and fibroblasts align parallel to prolonged resistant forces that are exerted in the same direction. It is also of two types: white fibrous connective tissue and yellow elastic connective tissue. Its collagen bundles are all oriented in parallel and the fibroblasts are also dispersed in rows between the collagen. Elastic connective tissue is the only specimen that contains significant amounts of elastic fibers. As we age the fibers within start to cross-link which makes the arteries more stiff and tight whihc winds up causing elevated blood pressure (hypertension). By the time you are finished with this packet you should be able to differentiate between them based on their apperance and know their functions. Dense elastic CT is found in the large arteries of the body; the aorta would be the largest example. * The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 33 of Sophia’s online courses. The collagen fibers are stacked on one another in a neat parallel array. We gratefully acknowledge the assistance of those who contributed to the completion of this project. Fibroblasts are the predominant cell type, scattered sparsely across the tissue. Bone, compact, ground, cs. (Tendon) Elastic connective tissue (Human aorta c.s.) Image Source: austincc.edu. The connective tissue is the glue that holds all other tissues together, it has the important function of ensuring that our body systems work in harmony. This one will cover the more densely arranged types of connective tissue proper called: dense irregular, dense regular, and dense elastic. Arteries need this tissue within its walls because of the high pressure and velocity of the blood flowing through them. Fibroblasts lie in rows between the collagen packages. It is also be present in numerous of the ligaments in the body. 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. Dense irregular connective tissue (Silver stain) Dense regular connective tissue (Dense fibrous c.t.) Mostly these types of connective tissues are found in tendons and ligaments. pulling Dense regular connective tissue contains fibers that are slightly ___________ so the tissue stretches a little. Histology - Dense regular connective tissue. 46 Areolar connective tissue. Binds body tissues together 2. The ligaments in the vocal folds and between the vertebrae in the vertebral column are elastic. There are three major categories of dense connective tissue: regular, irregular, and elastic. The dense regular connective tissue contains parallelly arranged collagen fibers in a single direction. Dense regular tissue is found in tendons, ligaments, and muscle fascia. Dense Regular Connective Tissue Dense routine connective tissue is identified by an abundance of securely loaded collagen fibers and fairly couple of cells The collagen fibers exist in big packages that are “frequently” set up, indicating they are normally parallel to each other. Dense regular connective tissue is a collagenous connective tissue designed to be incredibly strong in one direction. Look at this image and make sure you can recognise loose and dense connective tissue. Moreover, elastic cartilage is a type of cartilage while elastic connective tissue is a type of dense connective tissue. 1. a. Module 4.10 Types of Dense Connective Tissue, using the dots under the image to examine a series of histology micrographs and learn about how the structure of dense regular connective tissue and dense irregular connective tissue facilitates their functions. Dense regular connective tissue is composed of fibroblasts that excrete high amounts of collagen fibers. Common examples of connective tissues include tendons, adipose tissue, and cartilage. Dense irregular connective tissue, which is made up of elastic fibers and a type of protein fiber called collagen, provides protection to the tissues or organs it surrounds. Fibrocartilage. It forms structures like tendons in which the forces are directed in a single direction. blood tissue types. Objectives •Describe each type of connective tissue (CT) and explain where they are found. Elastic connective tissue is a specialized type of dense connective tissue with a much higher proportion of elastic fibers. dense connective tissue types. Dense packing od component fibers maximum strength to this tissue. It is found in areas of the body where large amounts of tensile strength are required, like in ligaments, tendons and aponeurosis. Dense regular connective tissue establishes a connection between different tissues that are present in the human body. Elastic Connective Tissue - the ligamentum nuchae is an example of elastic connective tissue. Due to its rubbery nature, elastic tissue can recoil after stretching . Areolar Connective Tissue These tissues are widely distributed and serve as a universal packing material between other tissues. Copyright © 2013 by John Wiley & Sons, Inc. All rights reserved. This packet goes over the three types of dense connective tissue propers (regular, irregular, elastic). Dense irregular connective tissue (Figure 5) is composed of haphazardly arranged, densely packed collagen bundles with many purple stained fibroblasts present. Figure 4: Dense regular tissue. The dense regular connective tissue is composed of collagen fibers that are arranged parallel in the form of a bundle. It has less ground substance than loose connective tissue. SOPHIA is a registered trademark of SOPHIA Learning, LLC. Use these modules to answer the following questions. Adipose connective tissue. Dense regular: Tendons and ligaments are examples of dense regular connective tissue. Dense regular connective tissue attaches muscle to bone and with the cells organized in one direction so that it pulls in one direction, like a tendon that connects to the bicep. compact and spongy. Dense irregular connective tissue has fibers that are not arranged in parallel bundles as in dense regular connective tissue. Dense connective tissue is dense because of the high proportion of fibers that run parallel to each other. Dense Irregular and Elastic Connective Tissue Summary, http://www.udel.edu/biology/Wags/histopage/colorpage/colorpage.htm. Its collagen bundles are all oriented in parallel and the fibroblasts are also dispersed in rows between the collagen. It is impact resistant. dense regular collagenous connective tissue?c. Supports the body 3. To understand why connective tissue is so important, lets take a close look at the various kinds of connective tissue, along with some examples. Blood It is liquid connective tissue which comprises of blood plasma and formed elements such as red blood cells, white blood cells and platelets. The last two packets (areolar & reticular, adipose) covered the loosely arranged types of connective tissue proper. This video will cover the three types of dense connective tissue proper: regular, irregular and elastic, Source: Self made with images from Marieb & http://www.udel.edu/biology/Wags/histopage/colorpage/colorpage.htm, Here are some images for you to study, pay attention to the arrangement of the fibers, Source: self made with images from http://www.udel.edu/biology/Wags/histopage/colorpage/colorpage.htm. It is thicker and stronger than loose connective tissue and forms a protective capsule layer around organs such as the liver and kidneys. Dense regular connective tissue fibers are parallel to each other, enhancing tensile strength and resistance to stretching in the direction of the fiber orientations. In many sources, this type is listed as connective tissue proper; however, … In dense irregular connective tissue, the direction of fibers is random. Dense regular connective tissue contains white structures with great resistance to _____. Dense connective tissue is divided into 1) dense regular, 2) dense irregular, 3) elastic. Dense regular connective tissue is a collagenous connective tissue designed to be incredibly strong in one direction. The three types of dense connective tissue are regular, irregular, and elastic tissue. Dense irregular connective tissue consists of mostly collagen fibers. Dense regular connective tissue is found in tendons and ligaments. Dense regular connective tissue is composed of fibroblasts that excrete high amounts of collagen fibers. credit transfer. Some applications require a ligament to balance tensile strength and elasticity, and thus contain elastic fibers in addition to collagen fibers that allow the ligament to return to its original length after stretching. Ligaments and tendons are made of dense regular connective tissue. •List the types of cells, fibers, and other extracellular matrix components found in connective tissues. The collagenous fibers are irregularly arranged in interwoven sheets that makes the tissue very strong. (A) Dense Regular Connective Tissue: In the dense regular connective tissue, the collagen fibres are present in rows between many parallel bundles of fibres. Dense regular connective tissue fibers are parallel to each other, enhancing tensile strength and resistance to stretching in the direction of the fiber orientations. bone tissue types. These capsules are important for protecting the organs and for preventing leakage into or out of the organ. Loose connective tissue has much more ground substance and a relative lack of fibrous tissue, while the reverse is true of dense connective tissue. This college course is 100% free and is worth 1 semester credit. It is dense regular connective tissue with both collagen and elastic … It is found in joint capsules, in the connective tissue that envelops muscles (muscle fascia), and it forms dermis of skin. dense regular connective tissue is composed of collagen fibers that are arranged parallel in the form of a bundle. Hyaline cartilage. Sophia partners *No strings attached. Connective tissue is the most common kind of tissue out of all of the primary kinds of tissue (epithelial, muscular, connective, a… Provides protection 4. guarantee Dense regular elastic tissue contains elastin fibers in addition to collagen fibers, which allows the ligament to return to its original length after stretching. Solution for What is the primary component in:a. loose connective tissue?b. Connective tissue connects, separates & supports all other types of tissues in the body, it consists of cells surrounded by a compartment of fluid called the extracellular matrix (ECM). It could be classified into two sub types of connective tissues namely; dense regular white fibrous connective tissue and dense regular yellow fibrous connective tissue. The ligamentum nuchae is a ligament at the back of the neck. The dense regular connective tissue is further classified into two varieties: dense regular collagenous connective tissue and dense regular elastic connective tissue. Being that this is heavily comosed of collagen this tissue is very resistant to tensile forces. In this variety of dense connective tissue, the fibers are densely packed and are arranged parallel to each other. This strong tissue is typically found in the tendons of muscles. Dense regular elastic tissue contains elastic fibers in addition to collagen fibers. •Relate the functions of each connective tissue to their structural organization. This tissue allows for the arteries to expand under high pressure and recoild under low pressure which is important for promoting smooth blood flow. 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Different colleges and universities consider ACE credit recommendations in determining the applicability to their organization! Is further classified into two varieties: dense irregular, dense regular collagenous connective tissue designed be... Silver stain ) dense irregular, and elastic connective tissue collagenous ( and some elastic ) fibres in single... Loose and dense regular collagenous tissue is a specialized type of dense tissue! But differs in its arrangement all directions which is important for protecting the organs for!
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