Dense Irregular and Elastic Connective Tissue Summary, http://www.udel.edu/biology/Wags/histopage/colorpage/colorpage.htm. To understand why connective tissue is so important, lets take a close look at the various kinds of connective tissue, along with some examples. Fibroblasts are the predominant cell type, scattered sparsely across the tissue. Dense regular connective tissue is mainly made up of type I collagen fibers. Bone, compact, ground, cs. Dense packing od component fibers maximum strength to this tissue. There are three major categories of dense connective tissue: regular, irregular, and elastic. Dense regular connective tissue is a collagenous connective tissue designed to be incredibly strong in one direction. It is made primarily of parallel collagen fibers, a few elastic fibers and the major cell type is the fibroblast. Dense connective tissue is dense because of the high proportion of fibers that run parallel to each other. Dense connective tissue is divided into 1) dense regular, 2) dense irregular, 3) elastic. a. hyaline, elastic, fibrocartilage. Dense elastic CT is found in the large arteries of the body; the aorta would be the largest example. Areolar Connective Tissue These tissues are widely distributed and serve as a universal packing material between other tissues. Answer: 1. Dense regular connective tissue is composed of fibroblasts that excrete high amounts of collagen fibers. Being that this is heavily comosed of collagen this tissue is very resistant to tensile forces. This packet goes over the three types of dense connective tissue propers (regular, irregular, elastic). Dense regular connective tissue contains white structures with great resistance to _____. 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. Reticular connective tissue. Dense irregular connective tissue consists of mostly collagen fibers. 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). 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. The three types of dense connective tissue are regular, irregular, and elastic tissue. Dense irregular connective tissue (Silver stain) Dense regular connective tissue (Dense fibrous c.t.) These capsules are important for protecting the organs and for preventing leakage into or out of the organ. (thin-section) The collagen fibers are stacked on one another in a neat parallel array. credit transfer. Dense regular elastic tissue contains elastin fibers in addition to collagen fibers, which allows the ligament to return to its original length after stretching. Binds body tissues together 2. Elastic connective tissue is the only specimen that contains significant amounts of elastic fibers. Figure 4: Dense regular tissue. It has less ground substance than loose connective tissue. pulling Dense regular connective tissue contains fibers that are slightly ___________ so the tissue stretches a little. The last two packets (areolar & reticular, adipose) covered the loosely arranged types of connective tissue proper. The dense regular connective tissue contains parallelly arranged collagen fibers in a single direction. 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 irregular connective tissue has fibers that are not arranged in parallel bundles as in dense regular connective tissue. The dense regular connective tissue is composed of collagen fibers that are arranged parallel in the form of a bundle. dense regular collagenous connective tissue?c. 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. Dense regular tissue is found in tendons, ligaments, and muscle fascia. This college course is 100% free and is worth 1 semester credit. It is found in areas of the body where large amounts of tensile strength are required, like in ligaments, tendons and aponeurosis. Hyaline cartilage. 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. Sophia partners Provides protection 4. It forms structures like tendons in which the forces are directed in a single direction. This section of dense regular collagenous tissue is from the tendon of a skeletal muscle. This one will cover the more densely arranged types of connective tissue proper called: dense irregular, dense regular, and dense elastic. It is thicker and stronger than loose connective tissue and forms a protective capsule layer around organs such as the liver and kidneys. Solution for What is the primary component in:a. loose connective tissue?b. compact and spongy. 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. dense regular elastic connective… Fibrocartilage. The dense regular connective tissue is further classified into two varieties: dense regular collagenous connective tissue and dense regular elastic connective tissue. Loose connective tissue has much more ground substance and a relative lack of fibrous tissue, while the reverse is true of dense connective tissue. The ligamentum nuchae is a ligament at the back of the neck. Its collagen bundles are all oriented in parallel and the fibroblasts are also dispersed in rows between the collagen. Ligaments and tendons are made of dense regular connective tissue, but in ligaments not all fibers are parallel. Dense irregular connective tissue also contains fibroblasts and collage but differs in its arrangement. This one will cover the more densely arranged types of connective tissue proper called: dense irregular, dense regular, and dense elastic. This type of tissue is what forms the tendons and ligaments of the human body. 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. Copyright © 2013 by John Wiley & Sons, Inc. All rights reserved. Bone, compact, ground c.s. 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. Ligaments and tendons are made of dense regular connective tissue. •Relate the functions of each connective tissue to their structural organization. 46 Blood It is liquid connective tissue which comprises of blood plasma and formed elements such as red blood cells, white blood cells and platelets. It is dense regular connective tissue with both collagen and elastic … dense regular connective tissue is composed of collagen fibers that are arranged parallel in the form of a bundle. It is found in joint capsules, in the connective tissue that envelops muscles (muscle fascia), and it forms dermis of skin. Connective tissue is the most common kind of tissue out of all of the primary kinds of tissue (epithelial, muscular, connective, a… Its collagen bundles are all oriented in parallel and the fibroblasts are also dispersed in rows between the collagen. This strong tissue is typically found in the tendons of muscles. Use these modules to answer the following questions. *No strings attached. This strong tissue is typically found in the tendons of muscles. - 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 are densely packed together and arranged in parallel to each other. Common examples of connective tissues include tendons, adipose tissue, and cartilage. Look at this image and make sure you can recognise loose and dense connective tissue. * 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. (Tendon) Elastic connective tissue (Human aorta c.s.) It is also of two types: white fibrous connective tissue and yellow elastic connective tissue. •List the types of cells, fibers, and other extracellular matrix components found in connective tissues. Arteries need this tissue within its walls because of the high pressure and velocity of the blood flowing through them. regular, irregular (sometimes elastic) cartilage tissue types. The collagenous fibers are irregularly arranged in interwoven sheets that makes the tissue very strong. Elastic Connective Tissue - the ligamentum nuchae is an example of elastic connective tissue. From: Douglas P. Dohrman and TAMHSC Faculty 2012 Structure and Function of Human Organ Systems, Histology Fibroblasts lie in rows between the collagen packages. Dense regular connective tissue establishes a connection between different tissues that are present in the human body. The unorganized array of collagen allows this tissue to conform to the exact shape of the organ. 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. This tissue allows for the arteries to expand under high pressure and recoild under low pressure which is important for promoting smooth blood flow. 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. Mostly these types of connective tissues are found in tendons and ligaments. Areolar connective tissue. 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. Dense irregular connective tissue (Figure 5) is composed of haphazardly arranged, densely packed collagen bundles with many purple stained fibroblasts present. It is also be present in numerous of the ligaments in the body. blood and lymph. © 2021 SOPHIA Learning, LLC. The ligaments in the vocal folds and between the vertebrae in the vertebral column are elastic. guarantee SOPHIA is a registered trademark of SOPHIA Learning, LLC. This type of tissue contains a dense woven network of collagenous (and some elastic) fibres in a viscous matrix. It is impact resistant. 299 Elastic connective tissue is a specialized type of dense connective tissue with a much higher proportion of elastic fibers. We gratefully acknowledge the assistance of those who contributed to the completion of this project. 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). Dense regular connective tissue is found in tendons and ligaments. Dense connective tissue can be categorized into dense regular, dense irregular, and elastic connective tissues.