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. connecting bones to each other, muscles to bones etc.) For active individuals, dynamic stretches before exercising and cross training or changing exercises are recommended. Elastic cartilage can stretch and recoil to its original shape because of its high content of elastic fibers. The many mitochondria in the cytoplasm of brown adipose tissue help explain its efficiency at metabolizing stored fat. Lastly, found in between the deep fascia and the serous membranes, is the subserous fascia. Which connective tissue specializes in storage of fat? A. cells, ground substance, and carbohydrate fibers, B. cells, ground substance, and protein fibers, C. collagen, ground substance, and protein fibers. They are also called gristle. In bone, the matrix is rigid and described as calcified because of the deposited calcium salts. Called osteoblasts, embedded in a firm, calcified matrix. Blood vessels, nerves and muscles, all have a loose connective tissue wrapping. Q. It forms a shock aborbing cushion around the kidneys and the eyeballs. Great deal of noncellular, nonliving material between the cells of connective tissue. But there is a catch: you cannot use anything to attach these parts together. The matrix contains very few blood vessels. Connective tissues help provide mechanical strength, shape and rigidity to the organs and keep them in place. Tissue Structure and Function: General Review. This arrangement gives the tissue greater strength in all directions and less strength in one particular direction. lacuna). Leukocytes, or white blood cells, are responsible for the defense of the organism against potentially harmful microorganisms or molecules. Adipose connective tissues are large fat located underneath the skin. White adipose tissue can be found protecting the kidneys and cushioning the back of the eye. Definition. The different types of connective tissue include adipose, fibrous, and elastic tissues as well as blood, bone, and cartilage. Despite their diversity, based on the properties of the extracellular matrix, connective tissues can be grouped into four major types and then further divided into smaller classes. For more information contact us at info@libretexts.org or check out our status page at https://status.libretexts.org. It is a fluid connective tissue. Functions of blood : 2. In case of severe pain, X-rays can be examined to rule out the possibility of a bone injury. Some white blood cells have the ability to cross the endothelial layer that lines blood vessels and enter adjacent tissues. The types are: 1. All of these fiber types are embedded in ground substance. forming protective sheath and packing material around the various organs separating them so that they do not interfere with each other acitivities, Carrying materials from on part to another in the body, forming a supporting from work of cartilage and bones for the body etc. A few distinct cell types and densely packed fibers in a matrix characterize these tissues. In all cases, overuse of the joint causes a microtrauma that initiates the inflammatory response. Collagen fibers, while flexible, have great tensile strength, resist stretching, and give ligaments and tendons their characteristic resilience and strength. Connective tissues separate and cushion organs, protecting them from shifting or traumatic injury. both organic and On rare occasions, a sudden serious injury will cause tendinitis. The main property of elastin is that after being stretched or compressed, it will return to its original shape. White adipose tissue is most abundant. Tendinitis is the inflammation of a tendon, the thick band of dense regular connective tissue that attaches a muscle to a bone. Connective tissues are divided into three groups: Loose Connective Tissue. Q. The ligaments in the vocal folds and between the vertebrae in the vertebral column are composed of dense regular elastic tissue. So you may try to carefully prop up the lumber on the foundation. ADVERTISEMENTS: Based on the composition, organization of the extracellular matrix, cell types and their functions, the connective tissue is classified into following three major types: 1. Cartilage. CLASSFICATION OF C. T. • Types of cells • Types of fibres • Amount of ground subs • Location 23. Further, there are three types of connective tissues. These cells can differentiate into any type of connective tissue cells needed for repair and healing of damaged tissue. Answer: Click at the bottom of the quiz for the answers. and flexible. 2. Summary. General connective tissue. Parts of the Cell. Erythrocytes, or red blood cells, transport the gases oxygen and carbon dioxide. Bone’s rigid extracellular matrix contains mostly collagen fibers embedded in a mineralized ground substance containing hydroxyapatite, a form of calcium phosphate. Characterisitics. It contains high quantities of water, several types of cells, and a fibrous extracellular matrix.The connective tissue of an organ is usually referred to as the stroma.This tissue type can have very different structures according to the proportions of its components. That dull ache in the wrist that you ignored through the summer is now an unbearable pain. Tissues are either classified as proper, embryonic, or specialized. Examples of typical dense regular and dense irregular connective tissues consisting primarily of collagen fibers are shown in (Figure \(\PageIndex{5}\)). The first connective tissue to develop in the embryo is mesenchyme, the stem cell line from which all connective tissues are later derived. While all animals can generally be considered to contain the four tissue types, the manifestation of these tissues can differ depending on the type of organism. Animal tissues are grouped into four basic types: connective, muscle, nervous, and epithelial. Loose Connective Tissue: The loose connective tissue is the least specialized connective tissue in the body. Connective tissues support your organs, attach muscles to bones, and create scar tissue after an injury. Bones also protect many delicate tissues and organs. It derives its name from the Latin reticulus, which means “little net.”. This tissue stores fat and insulates the body  against heat loss. alholmes. The macrophage cells are an essential component of the immune system, which is the body’s defense against potential pathogens and degraded host cells. 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. It has cells. The matrix plays a major role in the functioning of this tissue. Fluid connective tissue links the different parts of body and maintains a continuity in the body. The histology of transverse tissue from long bone (Figure \(\PageIndex{7}\)) shows a typical arrangement of osteocytes in concentric circles around a central canal. Release cytokines, small proteins that act as chemical messengers, the condition and the ligaments! Hardness of the tendon does not have abundant blood supply and heals slowly the oxidation food! And insulates the body this layer of dense irregular connective tissue protein subunits linked to... Perform the tasks only scattered mesenchymal cells throughout the body crystals, bones, and proteins these fiber are! 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