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 | Definition 
 
        | a sheet of cells that covers a body surface or lines a body cavity |  | 
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        | Epithelium characteristics |  | Definition 
 
        | polarity, specialized contacts, supported by connective tissue, avascular (no blood vessels) but innervated, regeneration |  | 
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 | Definition 
 
        | single layer of flattened cells with disc-shaped central nuclei and sparse cytoplasm |  | 
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 | Definition 
 
        | allows for diffusion and filtration; found in kidneys, air sacs of lungs, lining of heart, blood vessels, lymphatic vessels, ventral body cavity lining |  | 
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        | Term 
 | Definition 
 
        | single layer of cubelike cells with large, spherical central nuclei |  | 
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        | Term 
 | Definition 
 
        | secretion and absorption; found in kidney tubules, ducts and secretory portions of small glands, ovary surface |  | 
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 | Definition 
 
        | single layer of tall cells with round to oval nuclei; some cells bear cilia; layer may contain mucus-secreating goblet cells |  | 
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        | Term 
 | Definition 
 
        | absorption and secretion; non-ciliated type found in digestive tract, gallbladder; ciliated type lines small bronchi, uterine tubes and some regions of uterus |  | 
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        | Term 
 
        | pseudostratified columnar |  | Definition 
 
        | single layer of cells of differing heights, some not reaching the free surface, nuclei seen at different levels, may contain mucus-secreating cells |  | 
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        | Term 
 
        | pseudostratified columnar |  | Definition 
 
        | secretion: mainly of mucus; non-ciliated type in males sperm ducts, ciliated lines the trachea and most of the upper respiratory track |  | 
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        | Term 
 | Definition 
 
        | thick membrane composed of several layers of cells, |  | 
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        | Term 
 | Definition 
 
        | protects underlying tissues in areas subject to abrasion;  nonkeratinized- lining of the mouth, esophagus, and vagina. keratinized(contains keratin, a tough protective protein)- epidermis of the skin |  | 
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        | Term 
 | Definition 
 
        | rare; mainly found in the ducts of larger glands (sweat and mammary) * two layers typically |  | 
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        | Term 
 | Definition 
 
        | limited; in the pharynx and the male urethra |  | 
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        | Term 
 | Definition 
 
        | resembles stratified squamous and cuboidal cells; surface cells are dome shaped |  | 
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        | Term 
 | Definition 
 
        | stretches readily; lines the ureters, bladder and part of the urethra |  | 
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        | Term 
 | Definition 
 
        | consists of one or more cells that make and secrete a particular product |  | 
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        | Term 
 | Definition 
 
        | often lose their ducts; produce hormones that they secrete by exocytosis into the extracellular space |  | 
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        | Term 
 | Definition 
 
        | are numerous and their products are familiar; secrete products onto the body surfaces (skin) |  | 
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        | Term 
 
        | unicellular exocrine glands |  | Definition 
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        | Term 
 | Definition 
 
        | found everywhere in the body; most abundant of the primary tissuees |  | 
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        | Term 
 
        | characteristics of connective tissue |  | Definition 
 
        | common origin (mesenchyme), extracellular matrix |  | 
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        | Term 
 
        | elements of connective tissue |  | Definition 
 
        | ground substance, fibers, cells |  | 
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        | Term 
 | Definition 
 
        | unstructured material that fills the space between the cells and contains the fibers |  | 
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        | Term 
 | Definition 
 
        | constructed primarily of collagen and  assemble into cross-linked fibrils; extremely tough and provide high tensile strength |  | 
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        | Term 
 | Definition 
 
        | long, thin fibers that form branching networks in extracellular matrix |  | 
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        | Term 
 | Definition 
 
        | are short, fine, collagenous fibers; branch extensively and form delicate networks |  | 
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        | Term 
 | Definition 
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 | Definition 
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 | Definition 
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        | Term 
 | Definition 
 
        | cushions organs, plays role in inflammation; holds tissue liquids |  | 
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        | Term 
 | Definition 
 
        | widely distributed under epithelium; packages organs, surronds capillaries |  | 
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        | Term 
 | Definition 
 
        | provides reserve food fuel; insulation against heat loss; supports and protects organs |  | 
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        | Term 
 | Definition 
 
        | fibers form a soft internal skeleton that supports other cell types; lymphoid organs (bone marrow, spleen) |  | 
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        | Term 
 | Definition 
 
        | attaches muscles to bones or other muscles; withstands great tensile strength |  | 
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 | Definition 
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        | Term 
 | Definition 
 
        | able to withstand tensile strength in many directions; provides structural strength |  | 
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        | Term 
 | Definition 
 
        | fibrous capsules of organs and joints, dermis of skin |  | 
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        | Term 
 | Definition 
 
        | allows recoils of tissue following stretching, aids in recoil of lungs after inspiration |  | 
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        | Term 
 | Definition 
 
        | walls of large arteries, within walls of bronchial tubes |  | 
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        | Term 
 | Definition 
 
        | support and reinforces, resists compression strength |  | 
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        | Term 
 | Definition 
 
        | forms most of the embryonic skeleton, covers the ends of large bones,  in cartilages of the ribs, nose, trachea, and larynx |  | 
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        | Term 
 | Definition 
 
        | maintains the shape of a structure while allowing great flexibility; external ear |  | 
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        | Term 
 | Definition 
 
        | tensile strength with the ability to absorb compressive shock; intervertebral discs, pubic and knee joint |  | 
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        | Term 
 | Definition 
 
        | supports and protects; provides levers; stores calcium; contains marrow |  | 
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        | Term 
 | Definition 
 
        | transport of respiratory gases, nutrients, wastes, and other substances |  | 
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        | Term 
 | Definition 
 
        | transmits electrical signals from sensory receptors, and effectors; brain, spinal cord, and nerves |  | 
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        | Term 
 | Definition 
 
        | voluntary motion, locomotion; manipulation of the environment; facial expression; |  | 
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        | Term 
 | Definition 
 
        | contracts and propels blood into the circulation; walls of heart |  | 
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 | Definition 
 
        | propels substances along internal passageways; walls of hollow organs |  | 
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 | Definition 
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        | Term 
 | Definition 
 
        | line body cavities that open to the exterior |  | 
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        | Term 
 | Definition 
 
        | moist membranes found in closed ventral body cavities |  | 
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