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Histotechniques > fixation > Flashcards

fixation Flashcards

1
Q

enumerate mercurial fixatives

A

B-5 fixative
heidenhain’s susa
zenkers fluid
zenkers formol

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2
Q

aka lillies

A

b-5 fixative

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3
Q

basic mechanisms involved in fixation

A

additive fixation

non-additive fixation

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4
Q

aka hellys fluid

A

zenkers formol

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5
Q

types of fixatives according to action

A

microanatomical
cytological
histochemical

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6
Q

a type of secondary fixation where in a primary fixed tissue is dipped in 2.5 to 3% of potassium dichromate solution for 24hrs

A

post chromation

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7
Q

both a decalcifying agent and a dye

A

picric acid

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8
Q

mechanism involved in fixation that alters the composition of the tissue making it unsuitable for bacterial decomposition

A

non-additive fixation

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9
Q

enumerate microanatomical fixatives

A 
[BBBFF-H-ZZ]
10% BNF
bouins
brasil's
formol saline
formol sublimate (formol corrosive)
heidenhain's susa
zenkers solution
zenkersformol
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10
Q

aka alcoholic formalin

A

gendre’s fluid

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11
Q

enumerate major groups of chemical fixatives

A 
[AMOA]
Aldehydes
Metallic group
oxidizing agents
alcohol-based
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12
Q

– chemical constituent of the fixative is taken in by the tissue and becomes part of the tx

A

additive fixation

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13
Q

enumerate histochemical fixatives

A 
[FAcNAe]
10% formol saline
acetone
newcomers
absolute ethyl alcohol
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14
Q

enumerate types of metallic fixatives

A

[Lead Me CHRist]
Lead fixatives
mercurial
chromate fixatives

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15
Q

aka Lugol’s solution

A

alcoholic iodine

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16
Q

enumerate cytologic (nuclear) fixatives

A 
[BENCH]
bouins
flemmings
newcomers
carnoys
heidenhains
17
Q

yellow stain of tissue caused by picric acid is removed by____

A

lithium carbonate

18
Q

it acts as a mordant in post chromatization

A

potassium dichromate

19
Q

t/f: dezenkerization is the process of removing mercuric deposits by immersing tx in lugols solution prior staining

A

T

20
Q

enumerate cytoplasmic fixatives

A 
{HROFF]
hellys
regauds
orths
flemming's w/o acetic acid
formalin with post chroming

Histotechniques (7 decks)

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