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 (A)</p> Signup and view all the answers

Where are mast cells primarily located?

<p>In the connective tissue around vessels (D)</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 (A)</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 (D)</p> Signup and view all the answers

What cytoplasmic feature characterizes well-differentiated mast cells?

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

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

<p>Reactive histiocytic cells (B)</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 (D)</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 (A)</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 (B)</p> Signup and view all the answers

What feature characterizes giant cells?

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

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

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

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