Morphology and Function of Skin Cells Quiz
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Questions and Answers

What is the primary function of mast cells?

  • Intervening in hypersensitivity diseases (correct)
  • Protecting the body from infections
  • Producing inflammatory cells
  • Regulating blood pressure
  • Which of the following best describes the origin of mast cells?

  • They are formed in the lymph nodes
  • They are created in the spleen
  • They originate from bone marrow precursors (correct)
  • They are produced in the liver
  • What is a characteristic feature of mast cells when observed under a microscope?

  • They have numerous intracytoplasmic metachromatic granules (correct)
  • They lack a distinct nucleus
  • They appear transparent
  • They have elongated nuclei
  • What is a common challenge in interpreting inflammatory cells?

    <p>Differentiating between different sized nuclei</p> Signup and view all the answers

    Where are mast cells primarily located?

    <p>In the connective tissue around vessels</p> Signup and view all the answers

    What is the main characteristic that differentiates neoplastic cells from histiocytic inflammatory giant cells?

    <p>Uniform nuclear size</p> Signup and view all the answers

    Which type of giant cells is typically observed in immunological diseases linked to fungal infections?

    <p>Langhans cells</p> Signup and view all the answers

    What cytoplasmic feature characterizes well-differentiated mast cells?

    <p>Purple granules</p> Signup and view all the answers

    Which cells are stimulated from some malignant neoplasms such as anaplastic sarcomas?

    <p>Reactive histiocytic cells</p> Signup and view all the answers

    In neoplastic cells, what is a common feature of the nuclei that distinguishes them from histiocytic inflammatory giant cells?

    <p>Various nuclear sizes</p> Signup and view all the answers

    What is a notable difference between the nuclei of neoplastic cells and those of histiocytic inflammatory giant cells?

    <p>Multiple nucleoli</p> Signup and view all the answers

    What is the mechanism underlying the formation of giant cells according to one of the theories mentioned in the text?

    <p>Cells fuse together</p> Signup and view all the answers

    What feature characterizes giant cells?

    <p>Multiple nuclei</p> Signup and view all the answers

    What foreign substances can be found in the cytoplasm of giant cells as mentioned in the text?

    <p>Keratinocytes and hair shafts</p> Signup and view all the answers

    What distinguishes foreign body cells from other giant cells according to the text?

    <p>Peripheral nucleus arrangement in a horseshoe shape</p> Signup and view all the answers

    In what condition are epithelioid cells commonly observed in an epithelial-like arrangement around large foreign bodies?

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

    How do giant cells differ from spindle mesenchymal cells such as fibroblasts?

    <p>Presence of multiple nuclei</p> Signup and view all the answers

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