GPHT LAB - Adv and Disadv Flashcards Preview

► Med Misc 05 > GPHT LAB - Adv and Disadv > Flashcards

Flashcards in GPHT LAB - Adv and Disadv Deck (37):
1

adv
cheap, readily available, easy to prepare, relatively stable

formaldehyde

2

adv
does not overharden tissue

formaldehyde

3

adv
preserves fat and mucin

formaldehyde

4

adv
best fixative for nervous tissue

formaldehyde

5

disadv
irritating to skin causing allergic dermatitis

formaldehyde

6

disadv
fumes irritating to eyes and nostrils causing allergic rhintis and sinusitis

formaldehyde

7

disadv
considerable shrinkage of tissues

formaldehyde

8

disadv
reduction of both eosinophilic and basophilic staining of cells

formaldehyde

9

disadv
forms abundant brown artifacts, pigments, granules

formaldehyde

10

adv
has stable nature, stable effect on tissues, giving firmer texture and color

glutaraldehyde

11

adv
preserves cellular and plasma proteins better

glutaraldehyde

12

adv
excellent fixative for routine paraffins sections

paraformaldehyde

13

adv
used for thin and ultrathin sections for plastic embedding

paraformaldehyde

14

adv
gives better staining of nuclei and connective tissue

Mercuric chloride

15

adv
recommended for renal, fibrin and CT

Mercuric chloride

16

disadv
corrodes metal except nickel

Mercuric chloride

17

adv
strong protein precipitant

chromate fixatives

18

adv
preserves carbohydrates

chromate fixatives

19

disadv
forms a precipitate of insoluble suboxide

chromate fixatives

20

disadv
poor glycogen fixation

chromate fixatives

21

adv
fixes but does not precipitate cytoplasmic contents

potassium dichromate

22

adv
preserves mitochondria

potassium dichromate

23

adv
used mainly for mucopolysaccharides

lead fixatives

24

adv
precipitates protein

lead fixatives

25

adv
best fixative for glycogen

picric acid fixatives

26

adv
fixes and precipitates nucleoproteins

acetic acid fixative

27

adv
precipitates chromosomes and chromatin materials, which makes it useful in nuclear studies

acetic acid fixative

28

disadv
causes swelling of tissues

acetic acid fixative

29

disadv
destroys mitochondria and golgi elements

acetic acid fixative

30

adv
recommended for phosphatases and lipases studies

acetone

31

adv
used for fixing brain tissue for rabies

acetone

32

disadv
evaporates rapidly

acetone

33

adv
ideal for smaller tissue fragments

alcohol fixatives

34

adv
EXCELLENT for glycogen preservation

alcohol fixatives

35

disadv
causes polarization of glycogen

alcohol fixatives

36

adv
fixes conjugate fats and lipids permanently by making them insoluble during subsequent treatment with alcohol and xylene

osmium tetroxide fixatives

37

disadv
slow fixing agent
suitable for small tissues only

osmium tetroxide fixatives

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