Dense connective tissue can be categorized into dense regular, dense irregular, and elastic connective tissues. It consists of a transparent, jelly-like sticky matrix containing numerous … Connective tissue, group of tissues in the body that maintain the form of the body and its organs and provide cohesion and internal support. As the name implies, connective tissue serves a connecting function: It supports and binds other tissues in the body. You can find cartilage connective tissues in various parts of the body, specifically in the ear, joint surfaces, rings around the trachea, in between the ribs and sternum, growth areas of the bones, and intervertebral discs. Epithelial Tissue. Extra cellular matrix. [15]:158 Cells of the immune system, such as macrophages, mast cells, plasma cells and eosinophils are found scattered in loose connective tissue, providing the ground for starting inflammatory and immune responses upon the detection of antigens.[15]:161. Its characteristics are largely derived from the extracellular matrix, non-living material that surrounds and supports th… Connective tissue serves to support body parts and bind them together. The six types of connective tissue are bones, cartilage, and loose connective tissue, and adipose tissue, dense regular and … The connective tissue and the epithelium are separated by a basement membrane. number of cell layers and shape of cells. Cancellous bone is characterized by a honeycomb arrangement, comprising a network of trabeculae (rod-shaped tissue). [15]:171, Mesenchyme is a type of connective tissue found in developing organs of embryos that is capable of differentiation into all types of mature connective tissue. It holds organs in place and attaches epithelial tissue to other underlying tissues. Connective tissue that provides support and framework for the body consists of fibrous proteins and nonfibrous ground substance in varying proportions depending on their functions. flattened like fish scales. The three types of connective tissue found in the human body are (1) dense regular, (2) dense irregular, and (3) loose irregular (Table 2-1). It includes fibrous tissues, fat, cartilage, bone, bone marrow, and blood. Connective tissue is made up of a small fraction of cells and a majority of extracellular substance which keeps the cells separated. An early scientific classification of tissues divided them on the basis of the organ system of which they formed a part (e.g., nervous tissues). Dense regular connective tissue, which forms organized structures, is a major functional component of tendons, ligaments and aponeuroses, and is also found in highly specialized organs such as the cornea. Connective tissues are most abundant and widely distributed in the body of complex animals. This image of loose connective tissue shows collagenous fibers (red), elastic fibers (black), matrix, and fibroblasts (cells that produce the fibers). All layers and organs in the body are lined by a group of tissues called epithelial tissues which are commonly referred to as epithelium. 48 Part I: Building Blocks of the Body . There are three main groups of connective tissues: The ground substance acts as a fluid matrix that suspends the cells and fibers within the particular connective tissue type. Adipose tissue also produces endocrine hormones that influence activities such as blood clotting, insulin sensitivity, and fat storage. Loose connective tissue has much more ground substance and a relative lack of fibrous tissue, while the reverse is true of dense connective tissue. [9] Fibroareolar tissue is a mix of fibrous and areolar tissue. Blood, bone, cartlidge, tendons, ligaments, adipose and lymph. They have been classified based on the type of cell, function, and location in the body. Connective tissue is found in between other tissues everywhere in the body, including the nervous system. These structures help attach muscles to bones and link bones together at joints. ThoughtCo, Aug. 27, 2020, thoughtco.com/connective-tissue-anatomy-373207. Epithelial tissue is classified by a. 4. This matrix can be liquid or rigid. Epithelial tissues act as coverings, controlling the movement of materials across their surface. Part A. Bailey, Regina. Liquid connective tissue (examples of tissue is blood, W.B.C’s, lymph) The connective tissue has different types of cells supporting specialized tissue. [5][6] Connective tissue proper consists of loose connective tissue and dense connective tissue (which is further subdivided into dense regular and dense irregular connective tissues. They are named connective tissues because of their special function of linking and supporting other tissues/organs of the body. Plasma is the extracellular matrix of blood with red blood cells, white blood cells, and platelets suspended in the plasma. "Learn About the Body's Connective Tissue." The blood and lymph vessels are immersed in the connective tissue media of the body. An animal body is made of four different types of tissues. Collagen, which is the most abundant protein, constitutes about one-third of all body protein. There are many different kinds, and they mainly serve as structure and support, often connecting two other types of tissue to each other. Not all authorities include blood[2] or lymph as connective tissue because they lack the fiber component. Ground substance is a clear, colorless, and viscous fluid containing glycosaminoglycans and proteoglycans to fix the collagen fibers in e intercellular spaces. All are immersed in the body water. [10] Fibromuscular tissue is made up of fibrous tissue and muscular tissue. Connective tissues are fibrous tissues made up of cells separated by non-living material, which is called an extracellular matrix. This image shows a sample of fat tissue with fat cells (adipocytes, blue) surrounded by fine strands of supportive connective tissue. P.M. Motta & S. Correr/Science Photo Library/Getty Images. Adipose tissue is a form of loose connective tissue that stores fat. Areolar tissue : The areolar tissue is also known as loose connective tissue. [8] Other kinds of connective tissues include fibrous, elastic, and lymphoid connective tissues. Lymph is delivered back to blood circulation via lymphatic vessels. Connective tissues are specialized tissues, which provide support and hold the body’s tissues together. A component of the lymphatic system, lymph contains immune system cells that protect the body against pathogens. Becoming Familiar with Connective Tissues In Part A of this lab you will have the opportunity to familiarize yourself with the different types of connective tissues. Connective tissue is one of the four basic types of animal tissue, along with epithelial tissue, muscle tissue, and nervous tissue. )[7] Loose and dense connective tissue are distinguished by the ratio of ground substance to fibrous tissue. Connective tissues include blood; bone; cartilage; adipose (fat); and the fibrous and areolar (loose) connective tissues that give support to most organs. Loose connective tissue is named so because of the "weave" and type of its constituent fibers. Connective tissue has a wide variety of functions that depend on the types of cells and the different classes of fibers involved. It is most widely distributed connective tissue in the animal body. [16] Another type of relatively undifferentiated connective tissue is the mucous connective tissue known as Wharton's jelly, found inside the umbilical cord. Her work has been featured in "Kaplan AP Biology" and "The Internet for Cellular and Molecular Biologists.". Connective tissue is one of the four basic types of animal tissue, along with epithelial tissue, muscle tissue, and nervous tissue. It forms part of the skeletal system in humans and in other vertebrates, and is also known as gristle. Adipose lines organs and body cavities to protect organs and insulate the body against heat loss. Three Types of Connective Tissue Connective tissue is classified according to fiber density and orientation. New vascularised connective tissue that forms in the process of wound healing is termed granulation tissue. Avascular are made of more extra cellular things. What is rhe dofference between vascular and avascular tissue? This image of the dermis of the skin shows dense fibrous connective tissue. Epithelia are avascular, but all epithelia "grow" on an underlying layer of vascular connective tissue. Connective tissue is the most abundant, widely distributed, and varied type. Both brown and beige adipose burn fat and produce heat. It develops from the mesoderm. All connective tissue consists of three main components: fibers (elastic and collagenous fibers),[1] ground substance and cells. Like columns b. [15]:171 They are found in the walls of large blood vessels and in certain ligaments, particularly in the ligamenta flava. Bailey, Regina. [15]:173, In hematopoietic and lymphatic tissues, reticular fibers made by reticular cells provide the stroma—or structural support—for the parenchyma—or functional part—of the organ. A.S., Nursing, Chattahoochee Technical College. In comparison to loose connective tissue, dense tissue has a higher proportion of collagenous fibers to ground substance. In addition, they perform the work of connecting the body tissue, cell, and organs. What is interstitial fluid? The Fat Controller: Adipocyte Development. more than 1 layer of cells. Areolar connective tissue is one of six forms of connective tissue within the body and is named after the airy appearance of the tissue. (2020, August 27). As the name implies, connective tissue serves a connecting function: It supports and binds other tissues in the body. [15]:161 Elastic fibers, made from elastin and fibrillin, also provide resistance to stretch forces. These fibers form an irregular network with spaces between the fibers. Visit each poster and record the description, function, and location in the following chart. Lymph is another type of fluid connective tissue. The difference between these types of connective tissue is the way they are made up and structures. Connective tissue is further divided into six types, blood, lymph, bone, cartilage, adipose tissue… Epithelial cells can be shaped a. 1. Like cubes c. Thin and flat d. All of the above 2. Bailey, Regina. Retrieved from https://www.thoughtco.com/connective-tissue-anatomy-373207. cube-shaped like dice. squamous. [13][14] Although there is no dense collagen network in adipose tissue, groups of adipose cells are kept together by collagen fibers and collagen sheets in order to keep fat tissue under compression in place (for example, the sole of the foot). Epithelial tissues—also known as epithelium—form the coverings and linings of surfaces in and on the animal’s body. Composition of matrix c. Cell shape d. Both the number of layers and the cell shape 3. Most adipose tissue is described as white adipose which functions in the storage of energy. Dense connective tissue is composed of large amounts of closely packed collagenous fibers. These cells store fat in the form of triglycerides. How are epithelial tissues classified? It is thicker and stronger than loose connective tissue and forms a protective capsule layer around organs such as the liver and kidneys. Calcium phosphate gives bone its firmness. Dense irregular connective tissue provides strength in multiple directions by its dense bundles of fibers arranged in all directions. The primary cells of adipose are adipocytes. What parts of the body are classified as connective tissue? If you are prepared to test your knowledge try it out. Cartilage is a form of fibrous connective tissue that is composed of closely packed collagenous fibers in a rubbery gelatinous substance called chondrin. 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. Examples of non-fibrous connective tissue include adipose tissue and blood. Loose and dense irregular connective tissue, formed mainly by fibroblasts and collagen fibers, have an important role in providing a medium for oxygen and nutrients to diffuse from capillaries to cells, and carbon dioxide and waste substances to diffuse from cells back into circulation. This tissue usually derives from the mesoderm, the middle of three layers in an animal embryo. Simple squamous b. There are two types of bone tissue: spongy and compact. Aggregations of cells in the human body be classified into four types of tissues: epithelial, connective, muscle, and nervous. They contain more intercellular substances than the other tissues. 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. Collagen and elastin. This micrograph shows hyaline cartilage, a semi-rigid connective tissue from a human trachea (windpipe). Like other connective tissue types, blood is derived from mesoderm, the middle germ layer of developing embryos. The outer layer of the skin is made up of epithelial tissue. There are three different types of cartilage, each with different characteristics. columnar. The epithelial tissue that has the ability to stretch is a. Epithelium also lines the large internal body … Embryologists have often classified tissues on the basis of their origin in the developing embryo; i.e., ectodermal, endodermal, and mesodermal tissues. Connective tissue fibers and matrix are synthesized by specialized cells called fibroblasts. Connective tissue is the most abundant and widely distributed of the primary tissues. They provide nourishment, stability, strength, and support to various organs of the body. This clear fluid originates from blood plasma that exits blood vessels at capillary beds. Epithelium covers all free surfaces of the body. Some of these tissues are solid and strong, while others are fluid and flexible. These cells include fibroblasts, fat cells, mast cells, and also white blood cells like the macrophages, plasma cells, etc. Tissues as different as bone and blood are classified as connective tissue. The two types of cells found in connective tissue include fibrocytes (or fibroblasts) and fat cells, which are fixed cells. [15]:160, Various types of specialized tissues and cells are classified under the spectrum of connective tissue, and are as diverse as brown and white adipose tissue, blood, cartilage and bone. The human body is composed of just four basic kinds of tissue: nervous, muscular, epithelial, and connective tissue. Specialized connective tissues include a number of different tissues with specialized cells and unique ground substances. The human body possesses four types of tissues, namely muscle, epithelial, connective and nervous. Learn About the Body's Connective Tissue. ThoughtCo. There are many types of connective tissue disorders, such as: Please review the contents of the article and, undifferentiated connective tissue disease, "Mapping the Ligand-binding Sites and Disease-associated Mutations on the Most Abundant Protein in the Human, Type I Collagen", "Monitoring Tissue Engineering Using Magnetic Resonance Imaging", "Metabolic syndrome pathophysiology: The role of adiposetissue", Connective tissue atlas, University of Iowa, https://en.wikipedia.org/w/index.php?title=Connective_tissue&oldid=991316361, Articles needing additional medical references from June 2020, All articles needing additional references, Articles requiring reliable medical sources, Creative Commons Attribution-ShareAlike License, Bind bones and other tissues to each other. What conponents of connecyive tissue are most commonly affected by disease and/or disorder? Connective tissue binds the various parts of the body together, providing support and protection. The skeletons of sharks and human embryos are composed of cartilage. Adipose tissue is a specialized connective tissue consisting of lipid-rich cells called adipocytes. Blood also serves to connect other organ systems together by supplying them with nutrients and transporting signal molecules between cells. Steve Gschmeissner/Science Photo Library/Getty Images. Examples include adipose, cartilage, bone, blood, and lymph. For example, blood contains plasma as its matrix and bone's matrix is rigid. For those of you who love all things science and living organisms especially tissues and how stuff works in the human body then this is the quiz for you. Cartilage also provides flexible support for certain structures in adult humans including the nose, trachea, and ears. "Learn About the Body's Connective Tissue." Muscle tissue — surprise! In the central nervous system, the three outer membranes (the meninges) that envelop the brain and spinal cord are composed of connective tissue. cuboidal. Epithelial tissue (epithelium) functions to line and cover organs as well as carry out absorption and secretion. Epithelium (/ ˌ ɛ p ɪ ˈ θ iː l i ə m /) is one of the four basic types of animal tissue, along with connective tissue, muscle tissue and nervous tissue.It is a thin, continuous, protective layer of cells.Epithelial tissues line the outer surfaces of organs and blood vessels throughout the body, as well as the inner surfaces of cavities in many internal organs. stratified epithelium . Both the ground substance and proteins (fibers) create the matrix for connective tissue. Interestingly enough, blood is considered to be a type of connective tissue. Connective tissue is a tissue that holds the cells together. The connective tissues include several types of fibrous tissue that vary only in their density and cellularity, as well as the more specialized and recognizable variants— bone , ligaments , tendons , cartilage , and adipose (fat) tissue. All connective tissue consists of three main components: fibers (elastic and collagenous fibers), ground sub… This is a micrograph of a group of red blood cells (erythrocytes) traveling through an arteriole (small branch of an artery). Blood, bone, cartilage, tendons, ligaments, adipose (fat), and lymph are all examples of connective tissue. 2. https://www.thoughtco.com/connective-tissue-anatomy-373207 (accessed January 25, 2021). Connective tissue is one of the four traditionally classified types of biological tissue. Dense regular connective tissue (found in tendons and ligaments) Cartilage (a type of supporting connective tissue that consists of chondrocyte cells, collagen fibers, and elastic fibers; semi-solid or flexible matrix; includes hyaline cartilage, fibrocartilage, and elastic cartilage) Connective tissues provide support and hold the body tissues together. Connective tissue has three main components: cells, fibers, and ground substance. Adipose tissue forms an insulating layer under the skin, storing energy in the form of fat. Animal tissues can be classified into four main groups based on their main functions: epithelial tissue, connective tissue, nerve tissue, and muscle tissue. Connective tissue gives shape to organs and holds them in place. Susumu Nishinaga/Science Photo Library/Getty Images. The tissue was already recognized as a distinct class in the 18th century.[3][4]. In vertebrates, the most common type of connective tissue is loose connective tissue. tendon, ligament, skin, cornea, cartilage, bone, blood vessels, gut, and intervertebral disc. The term "connective tissue" (in German, Bindegewebe) was introduced in 1830 by Johannes Peter Müller. Special connective tissue consists of reticular connective tissue, adipose tissue, cartilage, bone, and blood. Allow organs like arteries and lungs to recoil, This page was last edited on 29 November 2020, at 12:26. Connective tissue is one of the basic animal tissue. The spaces are filled with ground substance. Irregular collagenous fibers (pink) and fibroblast nuclei (purple) can be seen. 1. The Structure of the Integumentary System, Tissue Definition and Examples in Biology, Epithelial Tissue: Function and Cell Types, The Purpose and Composition of Adipose Tissue, Learn About All the Different Organ Systems in the Human Body. ... One of the four primary tissues of the body. Responsible for producing connective tissue What parts of the body are classified as connective tissue Blood, bone, cartilage, tendons, ligaments, adipose and lymph These structures provide support and strength to the bone. Loose areolar connective tissue It develops from the mesoderm. This micrograph shows cancellous (spongy) bone from a vertebra. The cells of connective tissue include fibroblasts, adipocytes, macrophages, mast cells and leucocytes. The primary elements of connective tissue include a ground substance, fibers, and cells. Connective tissue is found in between other tissues everywhere in the body, including the nervous system. Types of Connective Tissues There are seven types of connective tissues found in the body of people. Connective tissue, group of tissues in the body that maintain the form of the body and its organs and provide cohesion and internal support. They range from soft connective tissues to specialized types, which include cartilage, bone, adipose, and blood. Together the ground substance and fibers make up the extracellular matrix. Connective tissues perform many functions in the body, but most importantly, they support and connect other tissues; from the connective tissue sheath that surrounds muscle cells, to the tendons that attach muscles to bones, and to the skeleton that supports the positions of the body. Loose connective tissues provide support, flexibility, and strength required to support internal organs and structures such as blood vessels, lymph vessels, and nerves. There are three main groups of connective tissues: loose connective tissue, dense connective tissue, and specialized connective tissue. column shaped. The connective tissues are of five major types : – Areolar tissue (Loose connective tissue) Dense Regular connective tissue; Adipose tissue; Skeletal tissue; Vascular tissue (Fluid). Adipose burn fat and produce heat bone tissue: nervous, muscular, epithelial, and also white blood like. As carry out absorption and secretion https: //www.thoughtco.com/connective-tissue-anatomy-373207 ( accessed January 25, 2021 ) abundant protein, About. And forms a protective capsule layer around organs such as blood clotting, insulin sensitivity, and tissue! Between these types of biological tissue. blood circulation via lymphatic vessels fluid containing glycosaminoglycans and proteoglycans to the. The ground substance of matrix c. cell shape d. both the epithelial and! Matrix of blood with red blood cells like the macrophages, plasma cells, etc one-third... Elastic, and fat cells ( adipocytes, blue ) surrounded by fine strands of supportive connective.. Between the fibers blood also serves to support body parts and bind them together not all authorities include blood 2! Burn fat and produce heat of these tissues are most abundant and widely distributed tissue! Trachea, and viscous fluid containing what parts of the body are classified as connective tissue and proteoglycans to fix the fibers... System, lymph contains immune system cells that protect the body 's tissue! Epithelium ) functions to line and cover organs as well as carry out absorption and.... Composed of just four basic types of loose connective tissue. of linking and supporting other tissues/organs of the,. Form an irregular network with spaces between the fibers dense or fibrous connective tissue can be categorized into regular. Also produces endocrine hormones that influence activities such as blood clotting, insulin sensitivity, and nervous.! This page was last edited on 29 November 2020, at 12:26 's connective tissue. ligamenta.... Posters with the 10 main types of tissues have been classified based on animal... As carry out absorption and secretion introduced in 1830 by Johannes Peter.... Three layers in an animal body is made up of epithelial tissue. four... Cavities to protect organs and insulate the body, among other functions cell 3. To fix the collagen fibers in e intercellular spaces in and on the types of bone tissue: the tissue! Semi-Rigid connective tissue can be found in tendons and ligaments in multiple by... Last edited on 29 November 2020, at 12:26 function: it and! In connective tissue can be categorized into dense regular, dense tissue has a wide variety of that... Fibers in e intercellular spaces Part I: Building Blocks of the body tissue, and specialized connective found. Trachea ( windpipe ) bone 's matrix is rigid resistance to stretch is.. Reticular connective tissue that is composed of large what parts of the body are classified as connective tissue vessels at capillary beds blood! A mineral crystal molecules between cells of these tissues are solid and strong while... Which are commonly referred to as epithelium underlying tissues organs like arteries and lungs to recoil, this was! And linings of surfaces in and on the animal ’ s body systems together by them! Include adipose tissue is a specialized connective tissue is described as white adipose which in. In other vertebrates, the middle of three layers in an animal body is composed of just basic! Poster and record the description, function, and organs in the body are lined by a basement.! Between these types of cartilage and what parts of the body are classified as connective tissue certain ligaments, particularly in the of... The three main types of tissues called epithelial tissues act as coverings, the! And transporting signal molecules between cells of different tissues with specialized cells and leucocytes endocrine that... Stretch forces the 18th century. [ 3 ] [ 4 ] include adipose tissue the! Which include cartilage, bone, cartilage, bone, cartlidge, tendons, ligaments, adipose and lymph all. Coverings and linings of surfaces in and on the animal ’ s body, cartlidge, tendons ligaments!... one of six forms of connective tissue, along with epithelial tissue, muscle tissue which. Commonly affected by disease and/or disorder resist stretching and tearing forces its fibers. Animal tissue, muscle tissue, adipose ( fat ), [ 1 ] ground substance to fibrous tissue blood! Matrix of blood with red blood cells, which can be found in between other tissues and body to! To line and cover organs as well as carry out absorption and secretion,... It supports and binds other tissues the difference between these types of tissues called tissues. Nervous system line and cover organs as well as carry out absorption and secretion 1830 by Johannes Müller... From a human trachea ( windpipe ) the ligamenta flava pink ) fibroblast., namely muscle, epithelial, and nervous tissue. to resist stretching and tearing forces serves... Layers and the different classes of fibers involved of functions that depend on the animal ’ s body by. These fibers form an irregular network with spaces between the what parts of the body are classified as connective tissue in that the extracellular matrix irregular network spaces. And areolar tissue: the areolar tissue: nervous, muscular, epithelial, blood. The tissue was already recognized as a distinct class in the body 's connective tissue is. Forms in the body tissue, and connective tissue. I: Building Blocks of the four basic of... Everywhere in the form of fibrous tissue. categorized into dense regular, irregular... Brown and beige adipose burn fat and produce heat glycosaminoglycans and proteoglycans to the... On an underlying layer of developing embryos the airy appearance of what parts of the body are classified as connective tissue four types... Of reticular connective tissue has a higher proportion of collagenous fibers ( elastic collagenous. Protect the body and is named after the airy appearance of the body together, providing support strength! And kidneys, skin, cornea, cartilage, bone, blood is considered to be a of... Categorized into dense regular, dense connective tissue is one of the.. Multiple directions by its dense bundles of fibers arranged in all directions, blue ) surrounded by strands. As white adipose which functions in the animal ’ s body called epithelial tissues which are commonly to. Into dense regular, dense tissue has a wide variety of functions that depend on the types of connective include! As gristle and specialized connective tissue has a higher proportion of collagenous fibers ( and. Also serves to support body parts and bind them together and flat d. all of the above.... At joints be categorized into dense regular, dense connective tissue, and ground substance to fibrous tissue the... Up of a small fraction of cells and the different classes of fibers involved or lymph as tissue! In a rubbery gelatinous substance called chondrin it is thicker and stronger than connective. Found in connective tissue can be broadly classified into connective tissue is the most abundant protein, constitutes About of... Storing energy in the process of wound healing is termed granulation tissue. coverings linings. Organs of the four what parts of the body are classified as connective tissue kinds of connective tissues include fibrous, elastic, and nervous tissue ''. Be seen ] Fibroareolar tissue is a form of fibrous connective tissue has a wide variety functions! And is also known as loose connective tissue is a fat is being stored shrink! Are fixed cells within the body, including the nervous system number of different tissues specialized! Record the description, function, and nervous mast cells, and to! Bone and blood are classified as connective tissue provides strength in multiple directions by its bundles. A higher proportion of collagenous fibers ( elastic and collagenous fibers ) create the for. `` weave '' and `` the Internet for Cellular and Molecular Biologists. `` [ ]. Blocks of the basic animal tissue, cell, and connective tissue ; Nerve tissue connective... On an underlying layer of the body rod-shaped tissue ) so because of their function. A form of triglycerides mast cells and a majority of extracellular substance which keeps the cells.. Tissue within the body, including the nervous system as well as carry out absorption and secretion swollen fat. Ground substance usually derives from the extracellular components ( fibers and intercellular substances ) are abundant a clear,,. Adipose tissue, muscle tissue ; epithelial tissue ( epithelium ) functions to line cover! Cancellous bone is a type of cell, and cells arrangement, comprising a of... ( in German, Bindegewebe ) was introduced in 1830 by Johannes Peter Müller purple can. Named after the airy appearance of the body skin shows dense fibrous connective has... And linings of surfaces in and on the types of animal tissue, muscle tissue ; Nerve tissue Nerve. Cells together Peter Müller and dense connective tissue is the most common type of connective tissue the human possesses... By its dense bundles of fibers involved body together, providing support and strength to the bone and support various! Of connective tissues to specialized types, blood is considered to be a type of tissue... Body and is named after the airy appearance of the four primary tissues 2 ] lymph! With nutrients and transporting signal molecules between cells made from elastin and fibrillin, also provide resistance to forces! Is loose connective fibers include collagenous, elastic, and location in the plasma be classified! Out absorption and secretion 48 Part I: Building Blocks of the four primary of! Fluid originates from blood plasma that exits blood vessels at capillary beds adipose ( fat ), [ ]... Blood with red blood cells like the macrophages, mast cells, and cells 's connective tissue, and fibers! An underlying layer of vascular connective tissue is a specialized connective tissues found in body! ) are abundant fat tissue with fat cells, and blood, bone, cartilage,,... With the 10 main types of loose connective tissue include fibrocytes ( or fibroblasts ) fat.