I. Their main role is to support the epithelial tissues. Click to see full answer. Adipose tissue. The Cardiovascular System: The Heart, 19.2 Cardiac Muscle and Electrical Activity, Chapter 20. (1, 5, 9, and 10), Your email address will not be published. It is a . The condition causes pain and tenderness in the area around a joint. feature in tissues with a mechanical function Loose Areolar Connective Tissue Macrophage. There are three major categories of dense connective tissue: regular, irregular, and elastic. There are different types: Genetic disorders, such as Ehlers-Danlos syndrome, Marfan syndrome, and osteogenesis imperfecta. ADIPOSE TISSUE 27. Adipose 40X_2.jpg. The many mitochondria in the cytoplasm of brown adipose tissue help explain its efficiency at metabolizing stored fat. (3). Among the cells, the fibroblasts are the predominant cells; other types of connective tissue cells are also present, along with nerves and blood vessels. Picture 6: A closer look at dense regular connective tissues. U can like my Facebook page ie. Unlike epithelial tissue, which is composed of cells closely packed together, cells of connective tissue are more widely dispersed within an extracellular matrix (ECM). Identify the tissue type and its function. The game is over for now. A large number of capillaries allow rapid storage and mobilization of lipid molecules. In regularly arranged connective tissue the fibers are arranged in certain patterns. Explain the general features of connective tissue. (1, 2). Collagen is a protein found in the tendons, ligaments, skin, cornea, cartilage, bone and blood vessels. The Chemical Level of Organization, 2.1 Elements and Atoms: The Building Blocks of Matter, 2.4 Inorganic Compounds Essential to Human Functioning, 2.5 Organic Compounds Essential to Human Functioning, Chapter 3. Areolar connective tissue - The areolar connective tissue is a loose array of fibers consists of various types of cells. Hyaline cartilage is smooth and clear, covers joints, and is found in the growing portion of bones. The body has various parts and these parts are bind together in a tight package. An example of loose connective tissue (or areolar tissue) is the dermis of the skin (see fig. Market: First Year Medical students, Nurse Practitioner students, and Physician Assistant students Topics covered will be tested on USMLE Step I Each chapter includes self-study questions, learning objectives, and clinical examples Two ... Their effectiveness at storing large amounts of fat is witnessed in obese individuals. The proteoglycan attracts and traps available moisture forming the clear, viscous, colorless ground substance. The tissue is also found around and between most body organs. Organ capsules (collagenous type) and walls of arteries (elastic type) contain dense, irregular connective tissue. PREVIOUS. arrow_forward. For example, it forms telae, such as the tela submucosa and tela subserosa, which connect mucous and serous membranes to the muscular layer. It can appear yellow and owes its color to carotene and related pigments from plant food. Fibroblasts are the most abundant and secrete many protein fibers, adipocytes specialize in fat storage, hematopoietic cells from the bone marrow give rise to all the blood cells, chondrocytes form cartilage, and osteocytes form bone. She consoles you by mentioning that well known tennis players such as Venus and Serena Williams and Rafael Nadal have also suffered from tendinitis related injuries. tissue, blood - white blood cells) or metabolic maintenance (adipocytes, 3. The macrophage cells are an essential component of the immune system, which is the body’s defense against potential pathogens and degraded host cells. Three main types of fibers are secreted by fibroblasts: collagen fibers, elastic fibers, and reticular fibers. Click at the bottom of the quiz for the answers. Tendon contains a high ratio of collagen to number of cells and the collagen fibers are arranged in parallel arrays along the lines of tension. Cartilage and bone are supportive tissue. Fibroblasts are present in all connective tissue proper (Figure 4.3.1). In whole mount spreads of areolar tissue the extracellular fibers are very evident. Found inside – Page 176LOOSE AND DENSE CONNECTIVE TISSUE A classification of connective tissue is presented in ... The tissues usually cited as examples of elastic tissue are ... It varies in types and distributed in various parts of the body. It contains all the cell types and fibers previously described and is structured in an apparently random, web-like fashion. 10x. Macrophages, mast cells, lymphocytes, plasma cells, and phagocytic cells are found in connective tissue proper but are actually part of the immune system protecting the body. Examples of loose connective tissue include hypodermis, lamina propria, submucosa, mesentery, and fascia. For example, if the matrix is calcified, it ligaments and tendons. 30. Blood contains formed elements derived from bone marrow. The committed and respected teams of authors and contributors have broadened the scope of this text and expanded it from 14 to 35 chapters. NEW department histology handbook: N° 99. Dense connective tissue proper is richer in fibers and may be regular, with fibers oriented in parallel as in ligaments and tendons,  irregular, with fibers oriented in several directions, or elastic, with a large amount of the protein elastin embedded within the fibers. Variations in the composition of the extracellular matrix, determines the properties of the connective tissue. Between the dense, regular connective tissue of the tendon and the dense, irregular connective tissue of the dermis is a layer of adipose tissue, which is another specific type of cellular (or "loose") connective tissue. 4. provides insulation, stores energy. This is accomplished by explaining general cell biology principles in the context of organ systems and disease. This updated version contains 60% new material and all new clinical cases. 100x. The amount and structure of each component correlates with the function of the tissue, from the rigid ground substance in bones supporting the body to the inclusion of specialized cells; for example, a phagocytic cell that engulfs pathogens and also rids tissue of cellular debris. Loose connective tissue. In contrast, white fat adipocytes store lipids as a single large drop and are metabolically less active. Q. The histology text the medical field turns to first -- authoritative, concise, beautifully illustrated, and completely up-to-date More than 600 full-color illustrations For more than three decades, Junquiera's Basic Histology has been ... Loose connective tissue (LCT), also called areolar tissue, belongs to the category of connective tissue proper. The ligament is the fibrous connective tissue that connects bones to other bones. You hear of tennis and golfer’s elbow, jumper’s knee, and swimmer’s shoulder. Q. Connective tissues also provide support and assist movement, store and transport energy molecules, protect against infections, and contribute to temperature homeostasis. Under the microscope, tissue samples appear clear. Visit this link to test your connective tissue knowledge with this 10-question quiz. True/False. Elastic fibers are prominent in elastic tissues found in skin, the walls of large blood vessels, and in a few ligaments which support the spine. During clotting, the fiber becomes visible. True or False: Tendons and ligaments are composed of elastic tissue. loosely packed, large amount of matrix, vascular (expect cartilage) innervated, fills internal spaces connects protects and supports, most abundant tissue, protein collagen and collagen fibers. Found inside – Page 42Liquid connective tissue—Blood and lymph (the fluid that circulates in the lymphatic system) are examples of liquid connective tissues. Cells are suspended in a fluid environment. Soft Connective Tissue The loose, ... Atlas of Comparative Vertebrate Histology looks at the histology of a wide range of vertebrates, representative of all the major classes and families, with examples ranging from amphioxus to primates. Both components of the matrix, organic and inorganic, contribute to the unusual properties of bone. There are three types of loose connective tissues and these are areolar connective tissues, adipose connective tissues, and reticular tissues. Question: 1. This book uses visual analogies to assist the student in learning the details of human anatomy and physiology. 2. In addition, the book is highly illustrated with line drawings and photographs which help to reinforce explanations and examples. Cartilage contains chondrocytes and is somewhat flexible. Of all types of tissues in the body, the connective tissue is the most abundant. A strength of Concepts of Biology is that instructors can customize the book, adapting it to the approach that works best in their classroom. Platelets are cell fragments involved in blood clotting. The distinctive appearance of cartilage is due to polysaccharides called chondroitin sulfates, which bind with ground substance proteins to form proteoglycans. AREOLAR TISSUE 25. Some white blood cells have the ability to cross the endothelial layer that lines blood vessels and enter adjacent tissues. The most abundant cell in connective tissue proper is the fibroblast. Adipose tissue or body fat is loose connective tissue composed of adipocytes. Tendons connecting muscles to bone and ligaments connecting bone to bone are examples of dense connective tissue proper. It is most widely distributed connective tissue in the animal body. It provides protection to internal organs and supports the body. Loose Connective Tissue. True/False. The main property of elastin is that after being stretched or compressed, it will return to its original shape. Packed with easily understood, up-to-date and clinically relevant material, this convenient volume provides an essential 'one-stop' resource in physiology for junior anaesthetists. These cells can differentiate into any type of connective tissue cells needed for repair and healing of damaged tissue. A reticular fiber is formed from the same protein subunits as collagen fibers, however, these fibers remain narrow and are arranged in a branching network. 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