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76 Cards in this Set
- Front
- Back
- 3rd side (hint)
Most rapid freezing agent |
Liquid Nitrogen |
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COLD KNIFE PROCEDURE
Knife Temp: Tissue Temp: Environment temp: |
COLD KNIFE PROCEDURE -uses CO2 gas from CO2 cylinder Knife Temp: -40 to -60 C Tissue Temp: 5 to -10 C Environment temp: 0 to 10 |
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Cryostat ProcedureKnife Temp: Tissue Temp: Environment temp: Optimum working temp? Mouting media used? |
Temp: maintained at the same temp near -20C -18 to -20C Von Apathy's Gum syrup 20-30% BSA OCT Water |
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Fixative used in Freeze substitution |
Rossman's formula or 1% Acetone |
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Formalin does not react with either fixation is elevated to ____ for RNA and _____ for DNA |
RNA - 45 DNA - 60 |
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Only fixatives that can preserve lipids |
Osmium tetroxide and Chromic acid |
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Concentration of Glutaraldehyde for small tissue fragments? For large tissues?
Recommended for? |
2.5% 4%
Enzyme histochem Electron Microscopy |
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Aldehyde fixative that contains 95% ethanol with picric acid and glacial acetic acid |
Alcoholic Formalin |
AKA Gendre's Fixative |
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Contains 2% paraformaldehyde and 2.5% glutaraldehyde in 0.1M phosphate buffer |
Karnovsky's For Electron histochemistry and electron immunocytochemistry |
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Mixture of glutaraldehyde or formaldehyde that is used for tough specimens that cannot be fixed by glutaraldehyde. |
Acrolein -for electron cytochemistry |
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Mercuric chloride fixative that does not produce black granular deposits. |
Heidenhein's susa -used for skin tumor biopsy |
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Solution used in removing black deposits due to mercuric chloride fixatives. |
Saturated Iodine solution in 95% alcohol -used in dezenkerization |
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Chromate fixative for Rikettsia. |
Orth's Fluid |
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Fixative for acid mucopolysaccharides |
Lead fixatives |
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Fixation Solidifies at 17C |
Glacial HAc |
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Fixes and dehydrates at the same time. Used for brain tisue fixation for rabbies diagnosis Also fixes Nissl Granules |
Carnoy's -most rapid fixative |
Most rapid fixative |
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Functions as a fixative and a weak decalcifying agent |
Trichloroacetic acid |
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Acetone fixative optimum temperature. |
-5 to 4C |
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Used for removing white formalin ppt |
Methanol |
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Intense eosinophilic staining at the center of the tissue(H&E) due to partial coagulation of partially fixed protein |
Crush artifact |
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Decalcification Optimum temp? Optimum time? Ratio? |
18 to 30 C 24 to 48 hours 20:1 |
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Decalcifies and Softens |
Perenyi's fluid |
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Decalcification Recommended for teeth and small pieces of bones. |
Von-Ebners -HCl |
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Dehydrating and Clearing agent (2) |
Tetrahydrofuran Dioxane (1,4-diethylene dioxide) |
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Method for dioxane dehydration in which tissue is treated with pure dioxane solutions, treated in paraffin baths, and embedded in mold and cooled in water.
Graupner's vs Weiseberg's |
Graupner's Method |
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Method in dioxane dehydration in which tissue is wrapped in a gauze bag ang suspended in dioxane containing a little anhydrous calcium oxide. Graupner's vs Weissberg's |
Weissberg's method |
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Clearing agent used as a substitute for Xylol and banzene. |
Toluene -tends to acidify in partially filled vessels |
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Clearing agent that penetrates rapidly which may cause aplastic anemia. |
Benzene |
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Clearing agent that doesnt make tissues tarnsluscent but removes alcohol. |
Chloroform |
Hepatotoxic after prolonged inhalation. |
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Cheaper version of chloroform |
Carbon tetrachloride |
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Requires 2 changes of clearing agent. |
Ceadarwood oil |
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Clearing agent used for double embedding techniques |
Methyl salicylate and Methyl benzoate |
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Embedding Manual vs Automated |
Manual - 4 changes Automated - 2 to 3 changes |
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Method in celloidin impregnation where equal parts of ether and alcohol is used. |
Wet celloidin |
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Method in celloidin impregnation Gilson's Mixture: equal parts of chloroform and cedarwood oil |
Dry celloidin method -for pricessing whole eye sections |
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Method in celloidin method in which eqaual parts of ether and alcohol, in lower viscosity is used. |
Nitrocellulose method -has tendency for tissue to crack. |
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Impregnating agent used for specimens with large hallow cavities, hard and dense tissues, large tissue sections of whole embyo |
Celloidin |
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Impregnating agent used for delicate specimens and frozen sections |
Gelatin |
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Impregnating agent for ultrathin sections |
Plastic or Resin |
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2 adjustable L-shaped strips |
Leukhart's |
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Made up of series of interlocking plates resting in a flat metal base |
Compound embedding unit |
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Special stainless steel base mold fitted with a plastic embedding ring |
Plastic embedding rings and base mold |
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Cochineal dye + Aluminum chloride |
Best Carmine -for demonstration of glycogen |
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Vegetable dye extracted from Lichens by the actions of NH3 and air |
Orcein |
Orcein vs Saffron |
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Extracted from plant crocus sativus. Incorporated by Mason into CT stain |
Saffron |
Orcein vs Saffron |
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Link between tissue and dye |
Mordant |
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Not essential and does not participate to the chemical reaction of dye. Hastens staining. |
Accentuator KOH for Loeffler's Methylene Blue Phenol for Carbol thionine and Carbol fuschin |
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Complex between mordant and certain dyes, which then attaches to the substrate. |
Lake |
Lake vs Accentuator vs Mordant vs Base |
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Tissue elements are stained in sequence, and staining solution is applied for a specific period of time |
Progressive staining -no decolorization or differentiation is required. |
Direct vs indirect vs progressive vs regressive |
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Tissue is first overstained to obliteraye the cellular details, then decolorized, then counterstained |
Regressive staining |
Direct vs indirect vs progressive vs regressive |
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Chief solvents for stains |
Water Phenol Alcohol - Methanol should be absolute; Ethanol- various concentration(acetone free) Aniline water |
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Ripening of Harris' Hematoxylin |
Mercuric Chloride |
Sodium iodate vs mercuric chloride vs alcohol iodine vs potassiun iodate |
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Ripening agent of Ehrlich's and Delafield's hematoxylin |
Natural or Sodium iodate |
sodium iodate vs mercuric chloride vs alcohol iodine vs potassiun iodate |
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Ripening agent for Gill's and Mayer's hematoxylin |
Sodium iodate |
Sodium iodate mercuric chloride vs alcohol iodine vs potassiun iodate |
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Ripening agent for Cole's hematoxylin |
Alcohol iodine |
sodium iodate vs alcohol iodate vs alcohol chloride vs potassiun iodate |
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Ripening agent for Crazzi's hemaroxylin |
Potassium iodate |
Potassium iodate vs mercuric chloride vs alcohol iodine vs sodium iodate |
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Stains hemoglobin |
Benzedine |
Benzidine vs Janus green vs Gentian Violet vs Iodine |
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Stains RNA(red) and DNA(green) |
Acridine orange |
Benzidine vs Janus green vs Acridine Orange vs Gentian Violet vs Iodine |
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Stains amyloid, elastic tissue, myelin |
Congo Red |
Benzidine vs Congo Red vs Gentian Violet vs Iodine |
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Stains ascaris eggs |
Malachite green |
Benzidine vs Malachite green vs Gentian Violet vs Janus Green |
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Stains Mitochondria |
Janus Green |
Benzidine vs Janus green vs Gentian Violet vs Iodine |
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Detects Herpetic lessions |
Vulvar Scrape |
Vulvar Scrape vs Vaginal Scrape |
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Procedure for patients with hysterectomy |
Vaginal scrape |
Vulvar Scrape vs Vaginal Scrape |
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For hormonal evaluation |
Lateral vaginal scrape |
Vaginal scrape vs Lateral vaginal scrape vs 4 quadrant scrape |
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For localization of vaginal adenosis |
Four quadrant scrape |
Vaginal scrape vs Lateral vaginal scrape vs 4 quadrant scrape |
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Hormone that promotes growth and maturation of superficial cells |
Estrogen -seen in the first half of cycle |
Estrogen vs Progesterone |
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Hormone that acts on intermediate cells |
Progesterone -causes rapid desquamation of superficial cells -high in pregnancy |
Progesterone vs Estrogen |
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Polygonal squamous cells usually identified by the presence of pale, pink-staining cytoplasm and dark pyknotic nuclei |
Mature superficial cell |
Parabasal cell, Mature superficial cell, intermediate cell |
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Medium sized polyhedral or elongated cells with basophilic and vaculated cytoplasm |
Intermediate cells |
Parabasal cells, Basal Cells, Endometrial Cells, Intermediate Cells |
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Boat-shaped intermediate cells that has a strong tendency to curl |
Navicular cell |
Basal cell, Navicular cell, Pregnancy cell, Endometrial Cell |
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Round, oval, or boat-shaped cell with nucleus at the side due to glycogen accumulation |
Pregnancy cells |
Basal cell, Navicular cell, Pregnancy cell |
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Round to oval cell with large vesicular nucleus |
Parabasal cell |
Basal Cell, Intermediate Cell, Endometrial Cell |
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Small round to slightly oval cells with relatively large nuclei and strongly basophilic cytoplasm |
Basal cells -seen before puberty and after menopause |
Parabasal cell, Basal cell, Pregnancy cell, Endometrial cell |
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Cells occuring in tightly pack of 3 or more foubd durung 1-10 days after menstruation and sheds in response to ovarian hormones. |
Endometrial Cells |
Endocervical Cells, Endometrial Cells, Basal Cells |
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Finely vacuolated cells showing honeycomb appearance when viewed on the end |
Endocervical cells |
Endocervical Cells, Endometrial Cells, Basal Cells |
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Abnormal cells seen in diabetic patients characteristic of sish kebab appearance |
Candida albicans |
Candida, Doderlein bacillus |