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Q 1/10
Score 0
In the standard H&E staining protocol used in veterinary histology, which specific cellular component is primarily targeted by the basic dye hematoxylin?
30
Extracellular collagen fibers
Cytoplasmic proteins
Intracellular lipid droplets
Nucleic acids within the nucleus
Plasma membrane carbohydrates
Q 2/10
Score 0
During the preparation of histological sections, what is the primary purpose of the 'clearing' step using reagents like xylene?
30
To replace the dehydrating agent with a solvent miscible with paraffin wax
To facilitate the rehydration of tissue before staining
To preserve cellular morphology by cross-linking proteins
To increase the refractive index of the cytoplasm for better contrast
To remove excess stain from the tissue surface
10 questions
Q.
In the standard H&E staining protocol used in veterinary histology, which specific cellular component is primarily targeted by the basic dye hematoxylin?
1
30 sec
Q.
During the preparation of histological sections, what is the primary purpose of the 'clearing' step using reagents like xylene?
2
30 sec
Q.
Which chemical agent is most commonly used as a 'universal' fixative in veterinary pathology to prevent tissue autolysis by forming cross-links between proteins?
3
30 sec
Q.
In the processing of veterinary tissue samples, what is the primary purpose of the 'dehydration' series using increasing concentrations of ethanol?
4
30 sec
Q.
Which specialized staining technique is most commonly employed in veterinary histology to demonstrate reticular fibers and basement membranes through the reduction of silver salts?
5
30 sec
Q.
In the context of veterinary histological techniques, which microtome accessory is essential for maintaining the integrity of 'frozen sections' during rapid intraoperative diagnosis?
6
30 sec
Q.
In veterinary histology, which staining technique is specifically utilized to differentiate between collagen fibers and smooth muscle in a tissue section, typically staining collagen blue or green and muscle red?
7
30 sec
Q.
Which specific histological technique is utilized to demonstrate glycogen and mucopolysaccharides through the oxidation of glycol groups to aldehydes, which then react with a leucofuchsin reagent?
8
30 sec
Q.
In veterinary histology, which specific embedding medium is typically required when preparing tissue sections for transmission electron microscopy (TEM) to withstand the high vacuum and electron beam?
9
30 sec
Q.
In veterinary histology, which staining technique is specifically used to visualize lipid droplets in frozen tissue sections, as lipids would be dissolved by the alcohols used in routine paraffin processing?
