Human Anatomy - Epithelial Tissue > Structure
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| simple squamous epithelium | single layer of thin, flat cells resembling floor tiles; the single nucleus of each cell bulges at its center
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| simple cuboidal epithelium | single layer of cells about as tall as they are wide; spherical, centrally located nucleus
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| nonciliated simple columnar epithelium | single layer of tall, narrow cells; oval-shaped nucleus in basal region of cell; nucleus oriented lengthwise in cell; apical regions of cells have microvilli; may contain goblet cells that secret mucin
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| ciliated simple columnar epithelium | single layer of tall, column-shaped, ciliated cells; oval-shaped nucleus oriented lengthwise in the basal region of the cell; goblet cells may be present
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| nonkeratinized stratified squamous epithelium | thick covering of several cell layers; basal cells typically are cuboidal, while superficial cells become squamous as they move toward surface; apical surface cells are alive and kept moist
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| keratinized stratified squamous epithelium | multiple cell layers; basal cells typically are pohyhedrial while superficial cells become squamous as they move toward surface; more superficial cells are dead and filled with keratin
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| stratified cuboidal epithelium | two or more layers of cells; cells at apical surface are cuboidal
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| stratified columnar epithelium | two or more layers of cells; cells at apical surface are columnar
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| pseudostratified ciliated columnar epithelium | single layer of cells with varying heights that appears multilayered; all cells connect to basement membrane but not all cells reach apical surface; has goblet cells and cilia
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| pseudostratified nonciliated columnar epithelium | single layer of cells with varying heights that appears multilayered; all cells connect to basement membrane but not all cells reach apical surface; lacks goblet cells and cilia
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| transitional epithelium | epithelial appearance varies, depending on whether tissue is stretched of relaxed; shape of cells at apical surface changes; some cells may be binucleated
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Created by:
allerlei
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