Histology Stain Flashcards
(31 cards)
What is the primary purpose of histology stains?
To enhance the contrast of tissue sections for microscopic examination.
True or False: Hematoxylin stains nuclei blue.
True.
What type of tissue is typically stained with eosin?
Cytoplasm and extracellular matrix.
Fill in the blank: The __________ stain is commonly used to identify collagen fibers.
Masson’s trichrome
Which stain is used to visualize myelin sheaths in nervous tissue?
Luxol fast blue.
Multiple Choice: Which of the following stains is used for identifying carbohydrates?
Periodic acid-Schiff (PAS).
What color does the Gram stain turn Gram-positive bacteria?
Purple.
True or False: Silver stains are primarily used for visualizing proteins.
False.
What is the main component of the hematoxylin stain?
Hematoxylin.
Which stain is used for identifying lipids?
Sudan stains.
Fill in the blank: The __________ stain is known for its ability to stain elastic fibers.
Orcein
Multiple Choice: Which of the following is a common fixative used before staining?
Formalin.
What is the function of a counterstain in histology?
To provide contrast to the primary stain.
True or False: Wright’s stain is used primarily for blood smears.
True.
What does the term ‘differential staining’ refer to?
Using different stains to distinguish between various tissue components.
Which stain is often used for detecting fungal elements?
Grocott’s methenamine silver (GMS).
Fill in the blank: The __________ stain is used to highlight the presence of mucins.
Alcian blue
Multiple Choice: Which stain is NOT typically used in histology?
Methylene blue.
What is the primary color of the trichrome stain for collagen?
Green or blue.
True or False: Immunohistochemistry uses antibodies to detect specific proteins in tissues.
True.
What is the role of a mordant in histology staining?
To fix the dye to the tissue.
Fill in the blank: The __________ stain is primarily used for demonstrating the presence of amyloid deposits.
Congo red
Multiple Choice: Which of the following stains is used to visualize nucleic acids?
DAPI.
What color does eosin stain cytoplasm?
Pink.
