that conveys tissue fluid and strengthens organs

citation tool such as, Authors: J. Gordon Betts, Kelly A. The chemical nature and physical layout of the extracellular matrix and proteins vary enormously among tissues, reflecting the variety of functions that connective tissue fulfills in the body. Bones rigid extracellular matrix contains mostly collagen fibers embedded in a mineralized ground substance containing hydroxyapatite, a form of calcium phosphate. Can you name the 10 tissue types shown in the histology slides? Dense connective tissue proper is richer in fibers and may be regular, with fibers oriented in parallel as in ligaments and tendons, or irregular, with fibers oriented in several directions. Connective tissue proper includes loose connective tissue and dense connective tissue. Anatomy Ch. 1-10: Comprehensive Review Flashcards | Quizlet A layer of dense irregular connective tissue covers cartilage. Erythrocytes, red blood cells, transport oxygen and some carbon dioxide. Bone tissue is highly vascularized. It is lighter than compact bone and found in the interior of some bones and at the end of long bones. Young athletes, dancers, and computer operators; anyone who performs the same movements constantly is at risk for tendinitis. Under the microscope, tissue samples appear clear. Bone is the hardest connective tissue. Determine the electric field strength of the precipitator. Connective Tissue Supports and Protects - Anatomy & Physiology Bones rigid extracellular matrix contains mostly collagen fibers embedded in a mineralized ground substance containing hydroxyapatite, a form of calcium phosphate. Reticular tissue is a mesh-like, supportive framework for soft organs such as lymphatic tissue, the spleen, and the liver ([link]). Connective Tissue Flashcards | Chegg.com The three broad categories of connective tissue are classified according to the characteristics of their ground substance and the types of fibers found within the matrix ([link]). It serves to connect the cutaneous membrane to the underlying organs. The lymphatic system is a part of the circulatory system, comprising a network of conduits called lymphatic vessels that carry a clear fluid called lymph unidirectionally towards the heart. After examining your swollen wrist, the doctor in the emergency room announces that you have developed wrist tendinitis. . The LibreTexts libraries arePowered by NICE CXone Expertand 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. Cartilaginous tissue is avascular, thus all nutrients need to diffuse through the matrix to reach the chondrocytes. Their effectiveness at storing large amounts of fat is witnessed in obese individuals. Erythrocytes, or red blood cells, transport the gases oxygen and carbon dioxide. Some cells have the ability to cross the endothelial layer that lines vessels and enter adjacent tissues. The dermis of the skin is an example of dense irregular connective tissue rich in collagen fibers. Tendinitis is the inflammation of a tendon, the thick band of fibrous connective tissue that attaches a muscle to a bone. The many mitochondria in the cytoplasm of brown adipose tissue help explain its efficiency at metabolizing stored fat. It stores fat for energy and provides insulation. -function: wraps and cushions organs; its macrophages phagocytize bacteria; plays an important role in inflammation; holds and conveys tissue fluid Reticular Connective Tissue resembles areolar tissue but the matrix is made up of only reticular fibers, found in bone marrow, spleen, liver, and lymph nodes As you might expect, a fibrocyte, a less active form of fibroblast, is the second most common cell type in connective tissue proper. Adipocytes are cells that store lipids as droplets that fill most of the cytoplasm. As you have seen from the tissue types discussed above, the main role of connective tissues is to form the structural framework of the body. Embedded within the cartilage matrix are chondrocytes, or cartilage cells, and the space they occupy are called lacunae (singular = lacuna). Lymph contains a liquid matrix and white blood cells. Both strong and flexible, it is found in the rib cage and nose and covers bones where they meet to form moveable joints. Blood cells, and the cells of all other connective tissues, come from the same kind of embryonic stem cell. Connective tissue in the tendon does not have abundant blood supply and heals slowly. Some white blood cells have the ability to cross the endothelial layer that lines blood vessels and enter adjacent tissues. Creative Commons Attribution License lab quiz 2 tissues, integumentary system Flashcards | Quizlet These granules contain the chemical signals histamine and heparin. Bone is the hardest connective tissue. Hyaline cartilage, the most common type of cartilage in the body, consists of short and dispersed collagen fibers and contains large amounts of proteoglycans. Cancellous bone, also known as spongy bone, looks like a sponge under the microscope (Figure \(\PageIndex{7}\)) and contains empty spaces between trabeculae, or arches of bone proper. Fluid tissue, for example blood and lymph, is characterized by a liquid matrix and no supporting fibers. Roaming, or free, macrophages move rapidly by amoeboid movement, engulfing infectious agents and cellular debris. Connective tissue in the tendon does not have abundant blood supply and heals slowly. Leukocytes, or white blood cells, are responsible for the defense of the organism against potentially harmful microorganisms or molecules. In this way, specialized lymphatic capillaries transport absorbed fats away from the intestine and deliver these molecules to the blood. Q. Blood and lymph are fluid connective tissues. Connective tissue proper includes the fixed cells fibrocytes, adipocytes, and mesenchymal cells. Under the microscope, a tissue specimen shows cells located in spaces scattered in a transparent background. Secreted by fibroblasts, ground substance is made of polysaccharides, specifically hyaluronic acid, and proteins. The histology of transverse tissue from long bone shows a typical arrangement of osteocytes in concentric circles around a central canal. Other cells move in and out of the connective tissue in response to chemical signals. Nutrients, salts, and waste are dissolved in the liquid matrix and transported through the body. Most often, the condition results from repetitive motions over time that strain the tendons needed to perform the tasks. Both components of the matrix, organic and inorganic, contribute to the unusual properties of bone. 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. Platelets are cell fragments involved in blood clotting. The three main types of cartilage tissue are hyaline cartilage, fibrocartilage, and elastic cartilage ([link]). This tissue is no longer present after birth, leaving only scattered mesenchymal cells throughout the body. Dense regular elastic tissue contains elastic fibers in addition to collagen fibers. Areolar tissue shows little specialization. Other cells move in and out of the connective tissue in response to chemical signals. All of these fiber types are embedded in ground substance. These serve to hold organs and other tissues in place and, in the case of adipose tissue, isolate and store energy reserves. holds and conveys tissue fluid Location: Widely distributed under epithelia of body. In adults, new connective tissue cells originate from the ________. conveys tissue fluid and strengthens organs Areolar tissue is a reservoir for water, salts and fibroblasts What does adipose tissue contain? The first connective tissue to develop in the embryo is mesenchyme, the stem cell line from which all connective tissues are later derived. Examples of typical dense regular and dense irregular connective tissues consisting primarily of collagen fibers are shown in (Figure \(\PageIndex{5}\)). The matrix usually includes a large amount of extracellular material produced by the connective tissue cells that are embedded within it. The major component of the matrix is a ground substance often crisscrossed by protein fibers. The ligaments in the vocal folds and between the vertebrae in the vertebral column are composed of dense regular elastic tissue. A histologist examines a tissue slide and observes many fibers tightly packed together in a parallel arrangement. Anatomy Chapter 4: Tissues Flashcards | Quizlet A radioactive 60Co^{60} \mathrm{Co}60Co nucleus emits a gamma ray of wavelength 0.931012m0.93 \times 10^{-12} \mathrm{m}0.931012m. In other tissues, stretching in several directions is achieved by alternating layers where fibers run in the same orientation in each layer, and it is the layers themselves that are stacked at an angle. The dermis of the skin is an example of dense irregular connective tissue rich in collagen fibers. Cytokines recruit other cells of the immune system to infected sites and stimulate their activities. Both tissues have a variety of cell types and protein fibers suspended in a viscous ground substance. This ground substance is usually a fluid, but it can also be mineralized and solid, as in bones. Cross-linking . Blood contains formed elements derived from bone marrow. Location: beneath skin, surrounds organs. (Micrographs provided by the Regents of University of Michigan Medical School 2012), Cartilage is a connective tissue consisting of collagenous fibers embedded in a firm matrix of chondroitin sulfates. Blood and lymph are fluid connective tissues. In some tissues, fibers crisscross and form a mesh. It allows water, salts, and various nutrients to diffuse through to adjacent or imbedded cells and tissues. chapter 4 new part 2 Flashcards | Quizlet Two major forms of supportive connective tissue, cartilage and bone, allow the body to maintain its posture and protect internal organs. Structurally, all connective tissues contain cells that are embedded in an extracellular matrix stabilized by proteins. Fibrocytes, adipocytes, and mesenchymal cells are fixed cells, which means they remain within the connective tissue. Types of Tissues Flashcards | Quizlet 4.3B: Types of Connective Tissue - Medicine LibreTexts Both strong and flexible, it is found in the rib cage and nose and covers bones where they meet to form moveable joints. Textbook content produced by OpenStax is licensed under a Creative Commons Attribution License . The knee and jaw joints and the intervertebral discs are examples of fibrocartilage. The three main types of cartilage tissue are hyaline cartilage, fibrocartilage, and elastic cartilage (Figure \(\PageIndex{6}\)). Unlike epithelial tissue, which is composed of cells closely packed with little or no extracellular space in between, connective tissue cells are dispersed in a matrix. OpenStax is part of Rice University, which is a 501(c)(3) nonprofit. This arrangement gives the tissue greater strength in all directions and less strength in one particular direction. Surgical repair of a tendon is painful. In all cases, overuse of the joint causes a microtrauma that initiates the inflammatory response. This tissue is no longer present after birth, leaving only scattered mesenchymal cells throughout the body. Unlike epithelial tissue, which is composed of cells closely packed with little or no extracellular space in between, connective tissue cells are dispersed in a matrix. Elastic cartilage contains elastic fibers as well as collagen and proteoglycans. Connective tissue proper: loose connective tissue, adipose San Antonio College, Whitney Menefee, Julie Jenks, Chiara Mazzasette, & Kim-Leiloni Nguyen, ASCCC Open Educational Resources Initiative, Connective Tissue Fibers and Ground Substance, https://openstax.org/books/anatomy-and-physiology, Identify and distinguish between the types of connective tissue: proper, supportive, and fluid, Explain the functions of connective tissues. Without collagen, bones would be brittle and shatter easily. The external ear contains elastic cartilage. For a current set up in wire for 28.0 d, a total of, 1.3610261.36 \times 10 ^ { 26 } The matrix contains very few blood vessels. (Micrograph provided by the Regents of University of Michigan Medical School 2012), (a) Dense regular connective tissue consists of collagenous fibers packed into parallel bundles. Injuries to cartilage heal very slowly because cells and nutrients needed for repair diffuse slowly to the injury site. On rare occasions, a sudden serious injury will cause tendinitis. DESCRIPTION: single layer of flattened cells FUNCTION: allows materials to pass by diffusion and filtration in sites where protection is not important secretes lubrication substances in serosae LOCATION: Kidney glomeruli; air sacs of lungs; lining of heart, blood vessels, and lymphatic vessels, line of ventral body cavity This is probably ________. capillary action: If the adhesive forces are _____ than the cohesive forces, the attraction to the surface draws the liquid up the tube and the cohesive forces pull along those molecules not in direct contact with the tube walls If the cobalt was initially at rest, use the conservation of momentum equation to determine its speed following the gamma ray emission. If you are redistributing all or part of this book in a print format, The surface of hyaline cartilage is smooth. It makes up a template of the embryonic skeleton before bone formation. Some cells have the ability to cross the endothelial layer that lines vessels and enter adjacent tissues. Roaming, or free, macrophages move rapidly by amoeboid movement, engulfing infectious agents and cellular debris. Severe cases of tendinitis can even tear loose a tendon. Test Match Created by bouselel Terms in this set (17) Four Types Of Tissue Connective, Muscular, Epithelial, Nervous Areolar Wraps and cushions organs; its phagocytes engulf bacteria; plays important role in inflammation; holds and conveys tissue fluid Stratified Squamous Protects underlying tissues in areas subjected to abrasion Pseudostratified Surrounds capillaries. Young athletes, dancers, and computer operators; anyone who performs the same movements constantly is at risk for tendinitis. . Two major forms of supportive connective tissue, cartilage and bone, allow the body to maintain its posture and protect internal organs. Surface Tension, the resistance of the surface to external forces is a result of the attraction of the molecules and the level of hydrogen bonding.
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