Histology-Study of Tissues
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| epithelial tissue | show 🗑
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| show | closely packed cells with little or no interstitial material (cells are bound to eachother by cell junctions such as tight junctions,desmosomes, and gap junctions)cells are arranged in continuous sheets (single or multi-layered) polarity 1 free (apical) s
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| closely packed cells with little or no interstitial material is characteristic of... | show 🗑
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| cells are arranged in continous sheets single or multi-layered is characteristic of.. | show 🗑
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| polarity- 1 free (apical) side of cell faces an open area and the opposite surface (basal) lays on a non-living "basement membrane" is characteristic of... | show 🗑
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| show | no blood vessels
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| show | epithelial tissue
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| show | epithelial tissue
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| variety of shapes from flat (squamous) to columnar is characteristic of.. | show 🗑
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| show | single, falt layer as in tiled floorfound where rapid movement of materials across is important, endotheliummesothelium
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| show | lines heart, blood and lymphatic vessels, forms capillary walls
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| mesothelium | show 🗑
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| show | appear as closely fitted polygons, function in secretion and absorption,
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| show | cells are rectangular with nuclei near basefunction in absorption and secretionfree surface is often modified with microvilli, cilia, or as goblet cells
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| simple squamous epithelium ex. | show 🗑
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| show | lining kidney tubules, secreting parts of glands and their ducts
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| show | lining the digestive tract from the stomach to rectum, upper respiratory tract, lining ventricle of brain
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| show | appearance is that of multilayered tissue, but it is not-cells are different heights and nuclei vary in their levels, may be ciliated
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| pseudostratified columnar epithelium ex. | show 🗑
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| stratified squamous epiithelium | show 🗑
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| show | raregenerally only 2 layersfunctions for protection
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| show | ducts of sweat glands, male urethra
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| show | raresurface cells are columnar, underlying cells varyfunctions for protection and secretion
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| show | urethra, ducts of salivary glands, milk ducts in mammary glands
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| show | much like a stratified cuboidal epitheliumbasal cellsare cuboidal, surface cells are dome shaped or squamous liketissue can be stretched without pulling cells apart
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| show | lines the ureters, urinary bladder
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| show | endocrine glandsexocrine glands
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| endocrine glands | show 🗑
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| show | secrete products into a duct or tube
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| show | a watery solution contining enzymes
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| show | glycoproteins that hydrate and lubricate
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| show | serous and mucous (saliva)
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| holocrine | show 🗑
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| holocrine ex | show 🗑
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| apocrine | show 🗑
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| show | mammary glands
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| show | most common, secretion by exocytosis
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| show | pancreas, salivary, and sweat glands
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| unicellular | show 🗑
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| multicellular-simple or compound | show 🗑
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| simple multicellular | show 🗑
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| compound multicellular | show 🗑
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| connective tissue | show 🗑
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| show | binds, supports, strengthens other tissues, protects, insulates, compartmentalizes structures, transports (blood), immunity
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| general characteristics of connective tissue | show 🗑
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| show | may be fluid to firm to rigid
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| show | glycosaminoglycans such as hyaluronic acid
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| fibers of matrix | show 🗑
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| collagenous fibers | show 🗑
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| elastic | show 🗑
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| show | thin, a type of thin collagenous fibers, forms networks
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| show | fibroblasts, chondroblasts, osteoblastsform the ground substance and produce the fibers
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| show | fibrocytes-mature formfat cells-adipocytesmesenchymal cells
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| non c.t. cells | show 🗑
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| show | embryonic, connective tissues proper
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| show | mesenchyme (source of all other connective tissues), mucous connective tissue (located in the umbilical cord of a fetus)
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| connective tissue proper | show 🗑
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| show | areoloar-universal packing material, adipose, reticular
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| areoloar characteristics | show 🗑
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| show | padding, cushions shock, insulator against heat loss, packing, filling and storage functions
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| adipose characteristics | show 🗑
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| reticular characteristics | show 🗑
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| show | much higher density of fibers and fewer cellsdense regular, dense irregular, elastic connective tissue
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| show | collagenous fibers arranged in same directioncompose tendons and most ligaments
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| dense irregular | show 🗑
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| show | elastic fibers outnumber collagenous fibersvery elastic in propertyvocal chords in larynx, walls of arteries, trachea, bronchial tubes, ligaments between vertebrae
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| supporting c.t.'s | show 🗑
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| show | matrix more gel-like due to chondroitin sulfates dense collagenous and elastic fibers, no blood vessels, no nerve fiberscells are chondroblasts and chondrocytes and are found embedded in matrix in lacunae (spaces)
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| show | flexibility and supportbluish-white, glossy fibrils dispersed, most abundant cartilage, found at joints of long bones, embryonic skeleton, helps form nose, larynx, trachea, bronchi
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| fibrocartilage | show 🗑
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| elastic cartilage | show 🗑
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| show | intercellular matrix contains mineral salts (calcium phosphate and calcium carbonate) which makes it quite hardcells (osteoblasts and osteocytes) are in lacunae which are often arranged in concentric layers called lamellae
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| fluid connective tissues | show 🗑
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| blood connective tissue | show 🗑
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| lymph connective tissues | show 🗑
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| membranes | show 🗑
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| show | combination of epithelial layer and underlying connective tissue layer
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| show | lines body cavities open to exterior (digestive, respiratory, excretory, reproductive)
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| show | lines body cavities not open to exterior and cover organs within those cavities
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| show | integumentary system
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| synovial membranes | show 🗑
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| muscle tissue 1 basic function | show 🗑
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| three types of muscle tissue | show 🗑
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| skeletal, striated, or voluntary | show 🗑
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| visceral, smooth, or involuntary (associated with organs) | show 🗑
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| show | striated, involuntary, found only within the walls of the heart, cells are cynlindrical and striated but usually mononucleatedunique feature is that cells are interconnected by branches
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| show | functioning cells are neurons, support cells are neuroglial cells
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| neurons | show 🗑
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| neuroglial cells | show 🗑
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Created by:
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