Bone tissue is also called the osseous tissue. It has relatively high compressive strength, but poor tensile strength, and very low shear stress strength. There are three types of fibers found in connective tissue: collagen fibers, elastic fibers, and reticular fibers. Which connective tissue cell type produces collagen? False. Collagen: Collagen fibers are the strongest and most abundant of all the connective tissue fibers. c. Loose irregular connective tissue The osseous tissue is relatively hard and lightweight in nature. Top of Page. This is a blend of hyaline cartilage and dense regular connective tissue. Like to the timber framing of a house, the connective tissue provides structure and support throughout the body. Connective tissue has three main components: cells, fibers, and ground substance. a. Adipose tissue Others, such as bone, are richly supplied with blood vessels. 2. 3. Together the ground substance and fibers make up the extracellular matrix. Connective Tissue Proper . They are small purple cells found inside the connective tissue In vertebrates, it is composed of blood cells suspended in a liquid called blood plasma. Bones Storage – (energy, electrolytes) -- Ex. Plasma cells are derived from B lymphocytes. Silver impregnation, such as with a reticular stain, can be used to visualize reticular fibers. Anatomy and Physiology of Animals/Body Organisation. The two types of adipose tissue are white adipose tissue (WAT) and brown adipose tissue (BAT). It provides strong support while providing pads for shock absorption. This is especially seen in the arterial blood vessels and walls of the bronchial tubes. These are the most abundant protein fiber type, providing varying degrees of strength and rigidity to tissues. These fibers allow the tissues to recoil after stretching. Structural elements of connective tissue: Connective tissues consist of three parts: cells suspended in a ground substance or matrix; and most have fibers running through it. Myofibroblasts contain properties of both fibroblasts and smooth muscle cells. When a body region is inflamed, the areolar tissue in the area soaks up the excess fluid as a sponge and the affected area swells and becomes puffy, a condition called edema. a. Fibroblast Connective tissue (CT) is a one of the four main classes of tissues. It is comprised of cells and extracellular matrix, including fibers and ground substance. Because it is compressible and resists tension well, fibrocartilage is found where strong support and the ability to withstand heavy pressure are required. Collagen fibers are the most abundant fiber type in connective tissue. Cartilage – less hard and more flexible than bone. They have great tensile strength.They are the most abundant type of fibers in the body.T There are many tpes of collagen fibers, them ost common types of collagen fibers are: Type I collagen fibers: Are most abundant are found in: Dermis of skin; Fascia This tissue resembles areolar connective tissue, but the only fibers in its matrix are the reticular fibers, which form a delicate network. Cartilage is composed of specialized cells called chondroblasts and, unlike other connective tissues, cartilage does not contain blood vessels. Its matrix appears transparent or glassy when viewed under a microscope. 3. From the most rigid to softest, the major connective tissue classes are the following: 1. e. Both a and d. Brown adipose tissue is multilocular adipose tissue. It is made up of blood cells and is surrounded by a nonliving fluid called plasma. Blood is considered a specialized form of connective tissue. Elastic fibers are long, thin fibers that form branching network in the extracellular matrix. c. Histiocyte 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. During the process of tissue repair, which of the following processes produces scar tissue? The most abundant fibers of connective tissues are A) Reticular B) Elastic C) Collagen D) Glycoprotein Reticular 12 Which of the following is a loose connective tissue? Cartilage is classified in three types: 1) elastic cartilage, 2) hyaline cartilage, and 3) fibrocartilage, which differ in the relative amounts of these three main components. Describe the main characteristics and functions of connective tissue. Tendons, ligaments, and the white stringy tissue (fascia) seen in some cuts of meat are composed almost entirely of collagen, as is leather, which consists of the connective tissue layer (dermis) of animal skins. d. Mucous connective tissue e. Mast cell. Tap again to see term . A: Collagen Fibers are found in most supporting tissues and collagen is the most abundant protein in the body (Wheaters). Key Points: Connective tissue is the most abundant and widely distributed of the primary tissues. a. Wright's stain Click again to see term . It is technically composed of roughly only 80% fat. Collagenous connective tissue is divided into two types, based upon the ratio of collagen fibers to ground substance: Loose (areolar connective tissue) is the most abundant form of collagenous connective tissue. a. Mucous connective tissue Its function is to maintain the shape of the structure while allowing flexibility. Bone – also called osseous tissue, is composed of bone cells sitting in cavities called lacunae. Collagen fibers:They are tough, thick and non-branching fibers. Together the ground substance and fibers make up the extracellular matrix. Specialized connective tissue includes cartilage, bone, adipose tissue, blood and hemopoietic tissue, and lymphatic tissue. c. Histiocyte d. Plasma cell Which is the most abundant fiber in connective tissue? The also secrete heparin, SRS-A (slow reacting substance of anaphylaxis, ECF-A (eosinophilic chemotactic factor of anaphylaxis. This is considered a specialized form of connective tissue. It is an undifferentiated tissue found in the embryo. Fats/bones Collagen fibers, the most abundant of the connective tissue fibers, are produced by fibroblasts and stain pink with eosin. a. Fibroblast The matrix is the most abundant feature for loose tissue although adipose tissue does not have much extracellular matrix. Cartilage is avascular, while dense connective tissue is poorly vascularized. These tissues are widely distributed and serve as a universal packing material between other tissues. Bone e. Masson's trichrome stain. Which of the following can be classified as "specialized connective tissue"? e. Muscle fibers. It consist of a loose network of collagen and elastin fibers containing a wide distribution of … It also helps in defending against infection. Collagen fibers and reticular fibers both belong to the collagen family, of which there are over 20 different types. e. Mast cell. A) Fibrocartilage B) Areolar C) Spongy bone D) Elastic Connective Areolar 13 Connective tissue is the most abundant and widely distributed of the primary tissues. Loose irregular connective tissue is areolar tissue. It is found in the intervertebral discs of the bony vertebrae and knee meniscus. Connective tissue proper consists of loose irregular connective tissue and dense connective tissue (regular and irregular). The fibrous components of loose areolar connective tissue, when viewed with the light microscope, appear as colourless strands of varying diameter running in all directions, and, if not under tension, these have a slightly undulant course. General Biology/Tissues and Systems/Connective Tissue. Collagen fiber. Unlike epithelial tissue, which has cells that are closely packed together, connective tissue typically has cells scattered throughout an extracellular matrix of fibrous proteins and glycoproteins attached to a basement membrane. They are the strongest and provide high tensile strength (that is the ability to resist longitudinal stress), stress test shows that collagen fibers are stronger than steel fibers of the same size. Brown adipose tissue b. Connective tissue macrophage Dense connective tissue. Which of the following would be best suited to visualize reticular fibers? 8. Collagen fibers are the most abundant fiber type in connective tissue. Primary tissue of the dermis Match the following type of connective tissue fiber with its description: Collagen fibers The strongest and most abundant fibers, they allow connective tissues to resist tension. Collagen. 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 … This has the same structural elements as dense regular tissue, but the bundles of collagen fibers are much thicker and arranged irregularly. Although it is the most abundant and widely distributed of the primary tissues, the amount of connective tissue in a particular organ varies. a. It is found in the external ear (known as an auricle) and in the epiglottis. They usually stain pink and are the thickest fiber. Polysaccharides and proteins secreted by fibroblasts combine with extra-cellular fluids to produce a viscous ground substance that, with embedded fibrous proteins, forms the extra-cellular matrix. Mast cells also secrete heparin, SRS-A (slow reacting substance of anaphylaxis, ECF-A (eosinophilic chemotactic factor of anaphylaxis. Its main role is to store energy in the form of lipids, although it also cushions and insulates the body. a. Wharton's jelly is mucous connective tissue. This is a flexible connective tissue found in many areas in the bodies of humans and other animals, including the joints between bones, the rib cage, the ear, the nose, the elbow, the knee, the ankle, the bronchial tubes, and the intervertebral discs. Dense connective tissue is divided into 1) dense regular, 2) dense irregular, 3) elastic. Connective tissue has three main components: cells, fibers, and ground substance. This consists of closely packed bundles of collagen fibers running in the same direction. 4. Major functions of connective tissue include: 1) binding and supporting, 2) protecting, 3) insulating, 4) storing reserve fuel, and 5) transporting substances within the body. Which connective tissue cell type secretes histamine? b. Hematoxylin and eosin stain Cartilage is a flexible connective tissue found in many areas in the bodies of humans and other animals, including the joints between bones, the rib cage, the ear, the nose, the elbow, the knee, the ankle, the bronchial tubes, and the intervertebral discs. Connective Tissue Found everywhere in the body Includes the most abundant and widely distributed tissues Functions of CT Binds body tissues together (Binding of organs -- Ex. Tap card to see definition . c. Adipose tissue Click again to see term . They help the connective tissue to stretch and recoil. a. Collagen fiber b. Elastic fiber c. Reticular fiber d. Purkinje fiber e. Muscle fibers. Collagen fibers are fibrous proteins and are secreted into the extracellular space and they provide high tensile strength to the matrix. Its porosity is 5–30%. Loose connective tissue Connective tissue has a wide variety of functions that depend on the types of cells and the different classes of fibers involved. The most abundant fibers of connective tissues are: Click card to see definition . This histology test bank is also useful for the histology questions on the USMLE (USMLE step 1). Most widespread is hyaline cartilage. c. Blood Polysaccharides and proteins secreted by fibroblasts combine with extra-cellular fluids to produce a viscous ground substance that, with embedded fibrous proteins and cells, forms the extra-cellular matrix. Connective Tissue Proper (LARDE) (general/basic category of Conn. tissue b/c their matrix is about the same/jello­like) loose connective tissue adipose tissue reticular connective tissue Tells what fibers to look for dense connective tissue Fibroblasts produce collagen. All rights reserved. Collagen fibers are fibrous proteins and are secreted into the extracellular space and they provide high tensile strength to the matrix. d. Cartilage What type of adipose tissue tends to decrease as humans age? Collagen fibers are predominantly made of collagen type I. Tendons, … This type of tissue persists into adulthood. This tissue forms the fascia, which is a fibrous membrane that wraps around the muscles, blood vessels, and nerves. 1. White adipose tissue Loose connective tissue is a category of connective tissue which includes areolar tissue, reticular tissue, and adipose tissue.Loose connective tissue is the most common type of connective tissue in vertebrates. Connective tissue is classified into two subtypes: soft and specialized connective tissue. It is part of the skin dermis area and in the joint capsules of the limbs. The most abundant fiber in connective tissues is a tough protein called collagen. d. Silver impregnation The major functions of connective tissue include: Connective tissues encompass a diverse array of tissue types that are involved in binding and supporting body structure and tissues. Connective tissues can have various levels of vascularity. Dense regular connective tissue comprises tendons and ligaments. Fibers of Connective Tissue. Connective tissue has three main components: Together the ground substance and fibers make up the extracellular matrix. In humans, adipose tissue is located beneath the skin (subcutaneous fat), around internal organs (visceral fat), in bone marrow (yellow bone marrow), and in breast tissue. Lipids are best displayed with a sudan stain. The fibroblast also produces the ground substance in connective tissue. Which of the following can be classified as "embryonic connective tissue"? The most abundant fiber in connective tissues is a tough protein called collagen. c. Reticular fiber 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 … This tissue gives bones their smooth, white, and solid appearance, and accounts for 80% of the total bone mass of an adult skeleton. 2. Purkinje fibers are specialized muscle fibers. The matrix is the most abundant feature for loose tissue although adipose tissue does not have much extracellular matrix. What is areolar tissue? Tap again to see term . d. Purkinje fiber a tendon connects muscle to bone Establishing a structural framework Support, protection, movement -- Ex. a. 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