STAINING Flashcards
process of applying dyes on the sections to see and study the architectural pattern of the tissue and physical characteristics of the cells
staining
purpose of staining
- to make the tissue and cell become more visible
- we can easily identify morphological changes in the tissue/cell
- performed to establish the presence of disease
higher affinity with basic dye
acidic
higher affinity with acidic dyes
basic
tissue constituents are demonstrated in sections by direct interaction with dye or staining solution
histologic stain
producing coloration of the active tissue component
histologic staining
employed to demonstrate the general relationship of tissues and cells with differentiation of nucleus and cytoplasm
histologic stains
examples of histologic stains
- microanatomic stains
- bacterial stains
- specific tissue stains
examples of microanatomic stains
- hematoxylin and eosin
- Masson’s Trichome
- periodic acid schiff
what does hematoxylin stain and what color
it stains nucleus blue
counterstain of hematoxylin
eosin
what does eosin stain and what color
it stains cytoplasm pink
microanatomic stain used for muscle fibers
Masson’s Trichome
color of Masson’s Trichome
red
microanatomic stain used for carbohydrate structures
Periodic Acid-Schiff
color of PAS
magenta
examples of bacterial stains
- gram stain
- Ziehl-Neelsen (Acid-Fast) stain
- Giemsa stain
color of Ziehl-Neelsen (Acid-Fast) stain
red
counter stain of Ziehl-Neelsen (Acid-Fast) stain
methylene blue
primary stain of Ziehl-Neelsen (Acid-Fast) stain
Carbon Fucshin
to heat fat to be easily penetrated by primary stain
Ziehl-Neelsen (Acid-Fast) stain
to differentiate blood cells and parasites by simple staining techniques
Giemsa stain
examples of muscle stains
- Gomori Trichome stain
- ATPase stain
types of specific tissue stains
- muscle stains
- connective tissue stains
- neurologic stains
muscle stain that differentiate muscle fibers from connective tissue
Gomori Trichome stain
combination of different tissues
Gomori Trichome stain
color of muscle fiber and CT in muscle stains
Muscle fibers: red
CT: blue/green
muscle stain for enzymatic reaction
ATPase stain
types of CT stains
- Van Gieson’s stain
- Verhoeff’s Elastic Stain
- Mallory’s Phosphotungstic Acid hematoxylin (PTAH) stain
color of collagen fibers and muscle fibers for Van Gieson’s stain
CF- red
MF - yellow
CT stain for staining elastic fibers
Verhoeff’s Elastic stain
color of elastic fibers for Verhoeff’s Elastic stain
black
color of collagen fibers and muscle fibers for Mallory’s Phosphotungstic Acid Hematoxylin (PTAH) stain
collagen - blue
muscle fibers - red orange
types of neurologic stains
- Luxol Fast blue
- Cresyl Violet (Nissl stain)
- Bielschowsky Silver stain
neurologic stain for myelin sheath
Luxol Fast blue
for staining Nissl bodies
Cresyl Violet (Nissl stain)
stain for studying neurodegenerative substances
Bielschowsky Silver stain
color of Bielschowsky’s Silver stain
Black
tisseu constituents are studied through chemical reactions that will permit microscopic localization of a specific tissue substance
histochemical staining
histochemical staining for hemoglobin
Perl’s Prussian blue
histochemical staining for carbohydrates
Periodic Acid Shiff
part of hemoglobin that is stained
iron/ ferric component of hemoglobin
positive color for iron
blue
ferric iron is converted to
ferric ferrocyanide
detect the activity of alkaline phosphate for bone and liver conditions
alkaline phosphate stain
organs utilized in alkaline phosphate stain
- bone, liver, intestine, and placenta
demonstarate activity of acid phosphate for bone and prostate gland
acid phosphatase
combination of immunologic and histochemical techniques that allow phenotypic markers to be detected and demonstrated
immunohistochemistry
serves as a link or bridge between the tissue and the dye
mordant