epithelial tissue and some of connective tissue
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| four primary types of tissue | epithelial, connective, nervous, &muscular tissue
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| does the covering | epithelial tissue
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| does the controlling | nervous tissue
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| deals with movement. | muscular tissue.
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| does the supporting | connective tissue
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| is a sheet of cells that covers a body surface or lines a body cavity | epithelial tissue
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| forms the boundary between different environments | epithelial tissue
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| helps with protection, absorption, filtration, excretion, secretion, and sensory reception | epithelial tissue
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| is Avascular but innervated (lacks blood supply/ communicates nerve energy to or stimulates through nerves - no blood vessels - diffusion nourishes the cells; nerve fibers are present | epithelial tissue
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| Regenerate quickly – adequate nutrition = rapid cell division | epithelial tissue
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| has closely packed cells | cellularity (characteristic of epithelial tissue)
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| cells are linked by tight junctions and desmosomes | Specialized contacts (characteristic of epithelial tissue)
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| apical and basal surface cells differ in structure and function | Polarity (characteristic of epithelial tissue)
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| is exposed to the body’s exterior or the cavity of an internal organ (microvilli = brush border, cilia) | apical surface (characteristic of epithelial tissue)
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| is the interior surface; new cells arise from this layer | basal surface (characteristic of epithelial tissue)
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| is a thin supporting sheet of glycoproteins functions in diffusion and allows epithelial cells to migrate to heal a wound | basal lamina (characteristic of epithelial tissue
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| extracellular material containing collagen protein fibers | reticular lamina (characteristic of epithelial tissue
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| (basal lamina and reticular lamina) forms a boundary and reinforces the epithelial sheet | The basement membrane (characteristic of epithelial tissue
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| is composed of closely packed cells mostly uniform type. Cells are anchored by a basement membrane. | epithelial cells
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| each tissues has a two part name: first name is what? second name is what? | the number of layers present, the shape of the cell.
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| the number of layers present in cell | first name.
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| the shape of cells. | second name.
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| single layer (responsible for absorption and filtration). | simple.
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| 2 or more layers (responsible for protection). | stratified.
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| 3 different shapes of cells. | cuboidal, columnar, squamous.
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| flat-scale like cells | squamous
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| box or cube-like, as tall as they are wide. | cuboidal
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| tall and column shaped | columnar
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| cells can be different shapes but they are classified by the? | apical layer.
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| types of epithelium tissues. | simple squamous, simple cuboidal, simple columnar, pseudostratified columnar, transitional, stratified columnar, stratified squamous.
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| squamous-disc shaped, cuboidal-spherical, columnar-elongated top to bottom and close to the cell base. | nuclear shape and placement
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| disc shaped | squamous
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| spherical shaped | cuboidal
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| elongated top to bottom shape and is close to the cell base | columnar
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| Functions absorption, secretion and filtration | Simple Epithelial
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| flattened, little cytoplasm, thin Endothelium- slick, friction reduced lining. Ex: heart, capillaries, lymphatic vessels | Simple Squamous
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| found in serous membranes lining the ventral cavity and its organs | Mesothelium
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| secretion & absorption Ex: kidney tubules & sm. ducts of glands | Simple Cuboidal Epithelium-
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| absoroption and secretion Ex: digestive tract dense microvilli for absorption goblet cells- secrete a protective lubricating mucus | Simple Columnar Epithelial Tissue
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| secretion and absorption - cells vary in height, but all rest on the basement membrane Ex: respiratory tract | Pseudostratified Columnar Epithelium
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| - -widespread, thick, protection. top layer is squamous and deeper layers are cuboidal or columnar. apical surface- keratinzed- rubbed away. | Stratified Squamous Epithelial Tissue
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| Stratified Epithelia- mostly protection, basal cells - divide and push apically | stratified squamous epithelial tissue characteristic
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| rare - found in the lg. ducts of some glands | Stratified Columnar Epithelial Tissue
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| cells are able to change shape and thin from 6 layers to 3 layers thick - lines urinary organs | Transitional Epithelial Tissue
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| A gland consists of 1 or more cells that make and secrete a particular product. | glandular epithelial tissue
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| gland classification has 2 distinctions what are they? | 1. Site of product release. 2.Number of cells
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| site of production release includes? | exocrine and endocrine
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| “internally secretion” - release their product to the extra cellular space - ductless glands - produce hormones that enter the blood or lymphatic fluid - very diverse group | endocrine
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| the product being released the process of releasing the product | secretion
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| “external secretion” - send their product to an epithelial surface inside or outside the body - secrete products onto body surfaces or in body cavities (have ducts) | exocrine
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| (number of cells) scattered in epithelial sheets | unicellular (characteristics of glandular cells)
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| produce mucin that dissolves in water to make mucus | goblet cells
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| form by invagination or evagination of an epithelial sheet and most have ducts 2 parts to a multicellular gland: duct & secretory unit | mulitcellular (characteristics of glandular cells)
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| two types of ducts | simple and compound
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| single unbranched duct | single glands
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| branched duct | compound glands
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| 3 types of secretory units | tubular, acinal&alveolar, &tubuloaveolar
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| secretory units form tubes | tubular
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| secretory units form small flask-like sacs | acinal& alveolar
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| contains both types of secretory units | tubuloalveolar
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| secrete their products by exocytosis Examples: pancreas, sweat glands (most), salivary glands | merocrine gland
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| accumulate their products then rupture releasing the products and dead cell fragments Example: sebaceous glands | holocrine gland
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| accumulate their products just under the cell membrane then pinch off that portion of the cell releasing the secretory granules and small amounts of cytoplasm Ex: mammary glands | apocrine gland
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| most abundant and widely distributed tissue | connective tissue
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| 4 main classes: connective tissue proper, cartilage, bone and blood | connective tissue characteristics
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| major functions: binding and support, protection, insulation, transportation of substances | connective tissue
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| avascular to richly vascularized | connective tissue
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