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CTO Quiz 1 > Histology stains > Flashcards

Histology stains Flashcards

1
Q

Hematoxylin

A

Blue

Cation, binds to acidic/anionic/basophilic groups (ie DNA, ribosomes)

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2
Q

Eosin

A

Pink
Collagen, cytoplasm
Eosinophilic, sometimes called “acidophili”

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3
Q

PAS (Periodic acid-Schiff’s

A

Recolorizes by oxidation

ie carbohydrates after periodic acid (glycogen, glycoproteins, proteoglycans)

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4
Q

Masson’s trichrome stain

A

Nuclei purple-black
Cytoplasm red
Collagen and mucin green

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5
Q

Gomori trichrome

A

Proteins green (collagen, muscle)
Nuclei purple
Lipophillic red
ie muscle biopsies

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6
Q

Silver

A

Delicate structures, many modifications

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7
Q

Resorcin-fuchsin

A

Elastic fibers -> dark blue

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8
Q

Wright’s blood

A

Eosin and meth blue
RBCs pink
Nuclei dark blue
Differential of WBCs

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9
Q

Giemsa

A

Similar to Wrights

Chromosome spreads

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10
Q

Feulgen reaction

A

Quantitative DNA -> magenta

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11
Q

Metachromasia

A

Substrates change stain (ie GAGs take toluidine blue -> red)

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CTO Quiz 1 (9 decks)

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