GE 258 CH 4
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| Cellularity-composed almost entirely of cells | Epithelial Tissue
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| Special contacts-form continuous sheets held together by tight junctions and desmosomes | Epithelial Tissue
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| Polarity-apical and basal surfaces | Epithelial Tissue
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| supported by connective tissue-reticular and basal laminae | Epithelial Tissue
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| Avascular but innervated-contains no blood vessels but supplied by nerve fibers | Epithelial Tissue
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| Regenerative-rapidly replaces lost cells by cells division | Epithelial Tissue
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| single layer of flattened cells with disc-shaped neclei and sparse cytoplasm | Epithelial: Simple Squamous
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| Function: diffusion and filtration | Epithelial: Simple Squamous
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| Present in the kidney glomeruli, lining of heart, blood vessels, lumphatic vessels and serosae | Epithelial: Simple Squamous
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| single layer of cube-like cells with large, spherical central nuclei | Epithelial: Simple Cuboidal
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| Function in secretion and absorption | Epithelial: Simple Cuboidal
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| Present in the kidney tubules, ducts and secretory portions of small glands, and ovary surface | Epithelial: Simple Cuboidal
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| Single layer of tall cells with oval nuclei; many contain cilia | Epithelial: Simple Columnar
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| Goblet cells are often found in this layer | Epithelial: Simple Columnar
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| Functions in absorption and secretion | Epithelial: Simple Columnar
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| single layer of cells with different heights; some do not reach the free surface | Epithelial: Pseudostratified Columnar
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| Nuclei are seen at different layers | Epithelial: Pseudostratified Columnar
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| Function in secretion and propulsion of mucus | Epithelial: Pseudostratified Columnar
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| Present in the male sperm-carrying ducts and trachea | Epithelial: Pseudostratified Columnar
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| Thick membrance composed of several layers of cell | Epithelial: Stratified Squamous
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| Function in protection of underlying areas subjected to abrasion | Epithelial: Stratified Squamous
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| Forms external part of skin's epidermis, and linings of the esophagus, mouth, and vagina | Epithelial: Stratified Squamous
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| several cell layers, basal cells are cuboidal, surface cells are dome shaped | Epithelial: Transitional
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| Stretches to permit the distension of the urinary bladder | Epithelial: Transitional
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| Lines the urinary bladder, ureters, and part of the urethra | Epithelial: Transitional
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| Functions of connective tissue | 1. binding and support 2. protection 3. insulation 4. transportation
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| Common tissue of origin | Mesenchyme
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| unstructured material that fills the space between cells | ground substance
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| collagen, elastic, or reticular | fibers
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| tought; provides high tensile strength | collagen
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| long; thing fibers that allow for stretch | elastic
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| branched collagenous fibers that form delicate networks | reticular
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| embryonic connective tissue | mesenchyme
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| gel-like matrix with all three connective tissue fibers | aerolar connective tissue
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| wraps and cushions organs | aerolar connective tissue
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| reserves food stores, insulates against heat loss, and supports and protects | adipose connective tissue
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| found under skin, around kidneys, within abdomen, and in breast | adipose connective tissue
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| forms a soft internal skeleton, or stroma, that supports other cell types | reticular connective tissue
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| found in lymph nodes, bone marrow, and the spleen | reticular connective tissue
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| parallel collagen fibers with a few elastic fibers | connective tissue proper: dense regular
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| attaches muscles to bone or to other muscles, and bone to bone | connective tissue proper: dense regular
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| found in tendons, ligaments, and aponeuroses | connective tissue proper: dense regular
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| irregularly arranged collagen fibers with some elastic fibers | conntective tissue proper: dense irregular
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| withstands tension in many directions providing structural stength | connective tissue proper: dense irregular
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| found in the dermis, submucosa of the digestive tract, and fibrous organ capsules | connective tissue proper: dense irregualr
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| supports, reinforces, cushions, and resists compression | connective tissue: hyaline cartilage
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| found in embryonic skeleton, the end of long bones, noes, trachea, and larynx | connective tissue: hayline cartilage
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| maintains shape and structure while allowing flexibility | connective tissue: elastic cartilage
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| supports external ear and the epiglottis | connective tissue: elastic cartilage
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| provides tensile strength and absorbs compression shock | connective tissue: fibrocartilage cartilage
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| found in intervertebral discs, the pubic symphysis, and in discs of the knee joint | connective tissue: fibrocartilage cartilage
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| hard, calcified matrix with collagen fibers found in bone | connective tissue: bone
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| supports, protects, and provides levers for muscular action | connective tissue: bone
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| functions in the transport of respiratory gases, nutrients, and wastes | connective tissue: blood
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| transmits electrical signals from sensory receptors to effectors | nervous tissue
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| long, cylindrical, multinucleated cells with obvious triations | muscle tissue: skeletal
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| inititates and controls voluntary movement | muscle tissue: skeletal
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| found in skeletal muscles that attach to bones or skin | muscle tissue: skeletal
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| branching, striated, uninucleated cells interlocking at intercalated discs | muscle tissue: cardiac
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| propels blood into the circulation | muscle tissue: cardiac
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| found in the walls of the heart | muscle tissue: cardiac
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| sheets of spindle-shaped cells with central nuclei that have no striation | muscle tissue: smooth
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| propels substances along internal passageways | muscle tissue: smooth
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| found in walls of hollow organs | muscle tissue: smooth
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