Tissue classification connective tissue epithelia muscle nerve extracellular matrix extracellular matrix continuous. Dohrman and tamhsc faculty 2012 structure and function of human organ systems, histology. Loose areolar connective tissue papillary layer of dermis hypodermis around organs basement membrane of mucous membranes surrounding blood vessels blood vessel. Connective tissue boundless anatomy and physiology.
Types of connective tissues with diagram animal tissue. There are several types of connective tissue disease. Tendons resist tension and do not stretch making them ideal for linking muscle to. Only connective tissue consititute 30% of total body weight. Connective tissue many different types of connective tissue. This type of connective tissue is formed by a cell known as an osteocyte. Connective tissue is found in between other tissues everywhere in the body, including the nervous system. Binds the skin to underlying organs, fills spaces between muscles and other organs. Relate the functions of each connective tissue to their structural organization. Be able to recognize different types of connective tissue e. The word tissue derives from the old french word meaning to weave, reflecting the fact that the different tissues are woven together to form the fabric of the human body.
Connective tissue consists mainly of long fibers embedded in noncellular matter, the ground substance. This chapter describes the features of soft, supportive connective tissue proper. Connective tissue quizzes and labeling worksheets kenhub. Connective tissue eral general composition of connective tissues. Connectvie tissues of animals serve the functions of binding and joining one tissue to another i. Like to the timber framing of a house, the connective tissue provides structure and support throughout the body. This means that the bodys natural immune system does not behave normally. Histology a microscopic study of human body tissues and. 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. It is thicker and stronger than loose connective tissue and forms a protective capsule layer around organs such as the liver and kidneys. Connective tissue can develop in any part of the body, and the body uses this ability to help repair or replace damaged areas. There are more than 200 different types of tissues of the human body and all of these may be categorized into one of four groups. The four basic types of tissue are epithelial tissue, connective tissue, muscle tissue, and nervous tissue. There are more than 200 different types of tissues of the human body and all of these may be.
The connective tissue cells secrete this extracellular material. Learn vocabulary, terms, and more with flashcards, games, and other study tools. More than 19 different types of collagens, encoded by 30 widely dispersed genes with characteristic distribution. Connective tissues are the major supporting tissue of the body. The connective tissue is derived from the embryonic mesoderm. Muscle 50%, epithelium 10% nervous 10% on the basis of matrix polysaccharides connective tissue is of 3 types. The functions of each of these are listed in table 142. Definition connective tissues ct are a group of tissues. The connective tissues include several types of fibrous tissue that vary only in their density and cellularity, as well as the more specialized and. In addition to producing all types of connective tissue proper and the specialized connective tissues bone and cartilage, the embryonic mesenchyme includes stem cells for other tissues such as blood, the vascular endothelium, and muscle. Three types of fibers are found in connective tissue. Connective tissue diseases can also be caused by things that exist in the environment.
In comparison to loose connective tissue, dense tissue has a higher proportion of collagenous fibers to ground substance. Epithelial tissues for lining body cavities, covering internal organs and large surfaces. Jan 28, 2020 dense connective tissue is composed of large amounts of closely packed collagenous fibers. In brief, connective tissue and muscle tissue are two types of tissues present in the human body and other higher level organisms. For example, red and white blood cells are found in blood, which is a fluid connective tissue. Choose from 500 different sets of 4 types of connective tissue tissues flashcards on quizlet. Connective tissue ct is one of the four basic types of animal tissue, along with epithelial tissue, muscle tissue, and nervous tissue. Learn 4 types of connective tissue tissues with free interactive flashcards.
Connective tissues, fibers, function, proteoglycans. Most commonly seen in all types of connective tissue. The other cell types within the tissue also respond to hypoxia, with the differentiation of preadipocytes to. In the central nervous system, the three outer membranes the meninges that envelop the brain and spinal cord are composed. Epithelial tissue is made of layers of cells that cover the surfaces of the body that come into contact with the exterior world, line internal cavities, and form glands. Like to the timber framing of a house, the connective tissue. It is composed of variety of cells, fibre nonliving products of cell and semisolid matrix between cells. Connective tissues for supporting and linking tissues or organs together. If a single, broad functional term were assigned to. You will not need to know this in great detail, but understand that it gives support, connects, separates and creates packing and storage. Definition connective tissues ct are a group of tissues which connects or binds other tissues in the body 4. Intimately associated with connective tissue in most places.
A tissue membrane is a thin layer or sheet of cells that covers the outside of the body for example, skin, the organs for example, pericardium, internal passageways that lead to the exterior of the body for example, abdominal mesenteries, and the lining of the moveable joint cavities. In standard histological views, the cells look empty because their lipid inclusions dissolve during slide preparation. In order to view these tissues, samples were taken from organs. Small amounts of connective tissue are found intermingled with other tissues throughout all organs of the body.
Sep 01, 2016 classification of connective tissue connective tissue. Such a tissue possesses varieties of subtypesgeneral or ordinary connective tissue, haematopoietic tissue, and specialised tissues which include cartilages, bones, joints and others. Connective tissues are specialized tissues, which provide support and hold the bodys tissues together. Students will enjoy discovering different connective tissues in this comprehensive science lesson. Collagen fibers are present in all types of connective tissue but vary greatly in their. Conclusion epithelial tissue and connective tissue are two basic types of tissues. The human body is made of four general types of tissues. What are the differences between ground substance, collagen and elastic fibers. Difference between connective tissue and muscle tissue. The fibrous elements are collagen fibers, reticular fibers and elastic fibers. Basically, connective tissue is the type of tissue that binds, unites and connects parts of the body. Connective tissue can generate a range of mechanical strengths. Tissues and integumentary system biology 105 lecture 7. Undifferentiated connective tissue disease, or uctd for short, is a systemic autoimmune disease.
The types of fibers found in connective tissue are collagen, fibrillin, elastin, reticulum, and fibronectin. Ehlersdanlos syndrome ten different types of this disorder, which lead to deformities in connective tissue. Objectives describe each type of connective tissue ct and explain where they are found. Noninherited causes of autoimmune types of connective tissue disease may include. Compared with most other kinds of tissue, connective tissue has few cells. What are the cellular components of connective tissue. Connective tissue consists of scattered cells immersed in an intercellular material called the matrix. Epithelial tissue, connective tissue, muscle tissue and nervous tissue. Connective tissue definition of connective tissue by. Tissue are groups of cells with a common structure and. Connective tissue is found in adipose, bone, ligaments, tendons, nerves, cartilage and muscles.
The types of cells found in connective tissue vary depending on the type of tissue they support. Pdf difference between epithelial and connective tissue. The fiber component is another of the three elements of connective tissue. Connective tissue proper matrix soft and fibrous 2. The key difference between connective tissue and muscle tissue is the functions of each tissue. Instead of serving to fight infections such as bacteria and viruses, the bodys own immune system attacks itself. Collagen, which is the most abundant protein, constitutes about onethird of all body protein. Each syndrome is caused by a different mutation, for example type four of this disorder is caused by a mutation in collagen type 3. Some types can be lethal, leading to the rupture of arteries. Its cells are loosely packed within the extracellular matrix network of macromolecules outside of the cell that provide it with structural and biochemical support. Connective tissue, group of tissues in the body that maintain the form of the body and its organs and provide cohesion and internal support.
There are four main tissues in the body epithelium, muscle, connective tissue and nervous tissue. Elastic cartilage maintains structure while allowing great flexibility. Connective tissue ct is a one of the four main classes of tissues. Unlike the other tissue types epithelium, muscle, and nerve, which consist mainly of cells, the major constituent of connective tissue is the extracellular matrix ecm. Connective tissue provides a matrix that supports and physically connects other tissues and cells together to form the organs of the body. Hyalinecartilageisthemostabundanttypeofcartilageinthebodyandisfound% intheribcage,thenose,thetrachea,andtheendsoflongbones. Be able to recognize a basement membrane or basal lamina in sections or micrographs where the structure is conspicuously present and understand its functions. Connective tissue connective tissues stabilize, bind, and support other tissues. These conditions can be caused by family genetics and are often known as heritable disorders of connective tissue. In between are types of connective tissue with different mechanical properties. Connective tissue is a continuous network of structure that binds tissues into their organ shape, supplies them with vessels and ducts and properly fastens the organs within the body cavity as well as binding organs to each other. Consists of cells called fibroblasts, and both collagen us and elastic fibers in the matrix.
Another type of relatively undifferentiated connective tissue is the mucous connective tissue known as whartons jelly, found inside the umbilical cord 160. The matrix consists of fibers and ground substance. The two types of ct proper are loose ct and dense ct. In the dense regular connective tissue, the collagen fibres are present in rows between many parallel bundles of fibres. Fluid ct makes up blood, which is mainly the fluid connective tissue. Embryonic connective tissues figure 421a mesenchyme, embryo figure 421b mucous connective tissue synopsis 43 pathological terms for connective tissue table 43 connective tissue types introduction and key concepts for connective tissue connective tissue provides structural support for the body by. Connective tissue an overview sciencedirect topics. Histology a microscopic study of human body tissues and mitotic cells. The kinds and amounts of fiber and ground substance determine the character of the matrix, which in turn defines the kind of connective tissue. Adipose tissue is a loose connective tissue dominated by adipocytes.
Conclusion epithelial tissue and connective tissue are two basic types of. Classification of connective tissue connective tissue. List the types of cells, fibers, and other extracellular matrix components found in connective tissues. Blood cartilage tendon bone vessels organ support the mechanical strength of connective tissue varies widely, from the sti. Identify the tissue type and a location where it is found. Tissues are groups of cells with a common structure form and function job. 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 2. The two types of cells found in connective tissue include fibrocytes or.
Connective tissue is what connects, separates and supports all other types of tissues in the body. Although it is the most abundant and widely distributed of the primary tissues, the amount of connective tissue in a particular organ varies. The first category includes those that are inherited, usually due to a singlegene defect. Dense connective tissue is composed of large amounts of closely packed collagenous fibers. Connective tissue ct is one of the four basic types of animal tissue, along with epithelial. Scar tissue is the most common form of this substitute. Lymph can also be considered fluid connective tissue. Connective tissue is made up of a small fraction of cells and a majority of extracellular substance which keeps the cells separated. The four types of tissue in the body are epithelial, connective, muscle, and nervous. Cells in connective tissue are usually separated from each other by extracellular material examples.