Test your knowledge of histopathology with this quiz that includes informative questions and answers today! Do you feel that you can pass this quiz? Histopathology is the microscopic examination of tissue to study all of the elements of the disease. Specifically, in clinical medicine, histopathology refers to the study of a biopsy or surgical specimen by a pathologist after the specimen. Try this quiz and see how much you actually know about this subject. All the best!
To prevent putrefaction
Remove excess water from the tissue
Prevent osmotic swelling
Render the tissue suitable for subsequent staining
To prevent lysosomal activity
Most commonly used Aldehyde fixative
It is a water soluble gas (sat. approx. 40%)
Concentrated formaldehyde is 40%
Penetrates tissue rapidly
Fixes tissue rapidly
The best fixative for nucleic acids
Widely used in EM
Gives a better morphological picture at the EM level
Cross-links less extensively than formaldehyde
Diffuses into tissue very slowly
Fixes tissue components rapidly
Renders tissue too hard for paraffin sectioning
It's toxic
Its corrosive
Its a pollutant
All of the above
10ml Formaldehyde (40%) and 90ml distilled water
50ml Formaldehyde (40%) and 50ml distilled water
90ml Formaldehyde (10%) and 10ml distilled water
90ml Formaldehyde (10%) and 10ml distilled water
Picric Acid
Potassium Dichromate
Glutaldehyde
Mercuric chloride
Microwave fixation is best suited on tissue blocks 10-12mm thick
The microwave radiation can damage fine tissue structures
It is unable to heat the centre of the tissue/organ sufficiently w/o overheating the outside
Using microwaves accelerates the rate of putrefaction
Is a denaturing agent
Swells collagen
Is a percipitating fixative
Is an alcohol
Is all of the above
74;60
26;20
62;30
50;25
Fix it ASAP
Refrigerate it if fixation isn't immediately possible
Reagents are carefully made up
Fixative is recycled and reused
A suitable treatment follows fixation
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