Histological Staining Techniques and Dyes Quiz
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Questions and Answers

What does Acid Fuchsin stain in Mallory's trichrome collagen stain?

  • Smooth muscle
  • Collagen (correct)
  • Mitochondria
  • Nuclei
  • What does Acridine Orange permit discrimination between?

  • Dead and living cells (correct)
  • Proteins and lipids
  • Nuclei and cytoplasm
  • DNA and RNA
  • What does Alcian Blue stain specifically?

  • Cytoplasm
  • Nuclei
  • Smooth muscle
  • Acid mucopolysaccharides (correct)
  • What color does Alizarin Red S form with calcium at a pH of 4.2?

    <p>Orange-red</p> Signup and view all the answers

    What is Aniline Blue used for?

    <p>Counterstaining of epithelial sections</p> Signup and view all the answers

    Which stain is used as a contrast stain for Gram's technique and in the Papanicolau method?

    <p>Bismarck Brown</p> Signup and view all the answers

    What is BASIC FUCHSIN primarily used for?

    <p>Staining acid-fast organisms</p> Signup and view all the answers

    What is the main constituent of Feulgen's and Schiff's reagent for the detection of aldehyde?

    <p>Basic Fuchsin</p> Signup and view all the answers

    What is the primary stain used in acid-fast staining?

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

    What is Celestine Blue primarily used for?

    <p>Alternative to iron hematoxylin nuclear stain</p> Signup and view all the answers

    Study Notes

    Staining Techniques and Applications

    • Acid Fuchsin: Stains collagen in Mallory's trichrome stain, highlighting connective tissue structures.
    • Acridine Orange: Allows differentiation between living (green fluorescence) and dead (orange/red fluorescence) cells, useful in cytology.
    • Alcian Blue: Specifically stains acidic mucins and glycosaminoglycans, aiding in the identification of certain types of tissues.
    • Alizarin Red S: Forms a red complex with calcium at a pH of 4.2, used to identify calcium deposits in tissues.
    • Aniline Blue: Employed to visualize collagen fibers, particularly in histological studies related to connective tissues.
    • Contrast Stain for Gram's Technique: Crystal violet serves as a primary stain, while safranin acts as the counter stain in the Papanicolaou method for cytology.
    • BASIC FUCHSIN: Primarily used to stain elastic fibers, facilitating the study of vascular structures and tissue integrity.
    • Feulgen's and Schiff's Reagent: The main constituent is the aldehyde compound, which specifically binds to DNA, important for nuclear staining.
    • Primary Stain in Acid-Fast Staining: Carbol fuchsin is the primary stain, especially crucial for identifying Mycobacteria.
    • Celestine Blue: Mainly used for the staining of ribosomal RNA in RNA-rich cell types, enhancing the visibility of these structures in histological preparations.

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    Description

    Test your knowledge of histological staining techniques and dyes with this quiz. Explore the properties and applications of acid fuchsin, Mallory's trichrome stain, and Van Gieson's stain, and learn about other related stains like acridine orange.

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