2-L1
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Questions and Answers

What shape does the nucleus of a squamous epithelial cell conform to?

  • Cuboidal
  • Flattened disk (correct)
  • Spherical
  • Elongate/Ovoid

    • What is the shape of the nucleus of a cuboidal epithelial cell?

  • Elongate/Ovoid
  • Cuboidal
  • Spherical (correct)
  • Flattened disk

    • What shape does the nucleus of a columnar epithelial cell take?

  • Spherical
  • Cuboidal
  • Flattened disk
  • Elongate/Ovoid (correct)

    • What is the shape of the nucleus of a spherical epithelial cell?

    <p>Cuboidal</p> Signup and view all the answers

    What is the characteristic of the nucleus of an epithelial cell in relation to the shape of the cell?

    <p>It conforms to the shape of the cell</p> Signup and view all the answers

    Which of the following describes the shape of the nucleus of an epithelial cell?

    <p>Conforms to the shape of the cell</p> Signup and view all the answers

    What is the primary function of papillae in epithelial tissues?

    <p>To increase the area of contact between epithelium and connective tissue</p> Signup and view all the answers

    What is the role of proteins in the basement membrane?

    <p>To help filter substances entering the epithelium and concentrate mitogenic growth factors</p> Signup and view all the answers

    What is the function of the basal lamina component of the basement membrane?

    <p>To organize proteins in the plasma membrane of epithelial cells</p> Signup and view all the answers

    What is the relationship between the dense basal lamina and the reticular lamina?

    <p>The dense basal lamina is anchored to the reticular lamina</p> Signup and view all the answers

    What is the location of the basement membrane in relation to the epithelium and connective tissue?

    <p>Between the epithelium and connective tissue</p> Signup and view all the answers

    What is the function of the basement membrane in terms of cell-to-cell interactions?

    <p>To mediate cell-to-cell interactions involving epithelia</p> Signup and view all the answers

    What is the primary function of epithelia?

    <p>To cover the external surface of the body and line internal surfaces</p> Signup and view all the answers

    What is a characteristic feature of epithelial cells?

    <p>They are arranged in continuous sheets, in single or multiple layers</p> Signup and view all the answers

    What is the function of the basement membrane?

    <p>To attach epithelial cells firmly to nearby connective tissue</p> Signup and view all the answers

    Why do epithelia have a high capacity for renewal?

    <p>Because they are subjected to wear and tear</p> Signup and view all the answers

    What is a characteristic of epithelial tissue?

    <p>It is avascular</p> Signup and view all the answers

    What is the apical surface of epithelial cells exposed to?

    <p>Body cavity, lining of internal organ, or exterior of body</p> Signup and view all the answers

    What is the main characteristic of simple epithelium?

    <p>It has one layer of cells.</p> Signup and view all the answers

    What is the function of stratified epithelium?

    <p>It protects underlying tissue from wear.</p> Signup and view all the answers

    What is the characteristic of pseudostratified epithelium?

    <p>It has one layer of cells that appears as multiple layers.</p> Signup and view all the answers

    What is the shape of cells that are involved in diffusion?

    <p>Squamous</p> Signup and view all the answers

    What is the shape of cells that are involved in secretion and absorption?

    <p>Cuboidal</p> Signup and view all the answers

    What is the shape of cells that are involved in protecting underlying tissue?

    <p>Columnar</p> Signup and view all the answers

    What is the shape of the cells in simple columnar epithelium?

    <p>Rectangular</p> Signup and view all the answers

    Where are nonciliated simple columnar epithelia typically found?

    <p>Gastrointestinal tract and gallbladder</p> Signup and view all the answers

    What is the function of goblet cells in simple columnar epithelium?

    <p>Secretion of mucus</p> Signup and view all the answers

    What is the function of microvilli in simple columnar epithelium?

    <p>Absorption of nutrients</p> Signup and view all the answers

    Where are ciliated simple columnar epithelia typically found?

    <p>Fallopian tubes, uterus, and spinal cord</p> Signup and view all the answers

    What is the function of ciliated simple columnar epithelium?

    <p>Movement of substances</p> Signup and view all the answers

    What is the shape of the nucleus in simple columnar epithelium?

    <p>Ovoid</p> Signup and view all the answers

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