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4.3 Cell Shape and Layers

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Terms in this set (7)

    • Consists of a single layer of cells covering the basement membrane

    • Thin

    Simple epithelium

    • Provides grater protection because it has several layers of cells above the basement membrane

    • Found in areas exposed to mechanical or chemical stresses

    • ex: surface of skin and lining of the mouth

    Stratified epithelium

    • Flattened plate like

    • nucleus occupies the thickest portion of each wall

    Squamous epithelium

    • Resemble little hexagonal (six-sided) boxes when seen from their free apical surfaces

    • In typical sectional view they appear square

    • The distance between neighboring nuclei is about equal tot the height go the epithelium

    Cuboidal

    • Cells are also hexagons but taller and more slender; resembling rectangles in sectional view

    • The nuclei crowd into narrow band close to the basement membrane

    • The height of the epithelium is several times the distance between two nuclei

    Columnar epithelium

  • A method of secretion in which the cel ejects material from secretory vesicles through exocytosis

    Merocrine

  • Method of secretion in which the glandular cell sheds portions of its cytoplasm (SMELLY SWEAT THAT IS WITH THE HAIR)

    Apocrine