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Questions and Answers
What is the purpose of the dehydration process in tissue processing?
What is the purpose of the dehydration process in tissue processing?
- To remove the water content from the tissue using increasing concentrations of dehydrating agents (correct)
- To fix the tissue with 10% formalin saline
- To preserve the tissue for long-term storage
- To transfer the tissue through a series of ascending gradient of Alcohol
How is 70% ethanol prepared for the dehydration process?
How is 70% ethanol prepared for the dehydration process?
- By mixing 90 ml of absolute alcohol with 10 ml of distilled water
- By mixing 80 ml of absolute alcohol with 20 ml of distilled water
- By mixing 70 ml of absolute alcohol with 20 ml of distilled water
- By mixing 70 ml of absolute alcohol with 30 ml of distilled water (correct)
What happens to the tissue during the dehydration process?
What happens to the tissue during the dehydration process?
- The tissue becomes more flexible and transparent
- The tissue is disintegrated by the dehydrating agents
- Water is replaced by diffusion as the tissue is passed through increasing strength of alcohol (correct)
- The tissue increases in volume due to the removal of water
Why is the dehydration process important in tissue processing?
Why is the dehydration process important in tissue processing?
What is the final concentration of alcohol used in the dehydration process?
What is the final concentration of alcohol used in the dehydration process?
What is the purpose of the clearing process in tissue processing?
What is the purpose of the clearing process in tissue processing?
What is the main function of an automatic tissue processor during the clearing stage?
What is the main function of an automatic tissue processor during the clearing stage?
Which substance is used to replace alcohol with in the clearing process?
Which substance is used to replace alcohol with in the clearing process?
Why is a solvent miscible with both the dehydrants and the infiltration medium used in the clearing process?
Why is a solvent miscible with both the dehydrants and the infiltration medium used in the clearing process?
What is the purpose of the mechanical device in mechanical tissue processing?
What is the purpose of the mechanical device in mechanical tissue processing?
The automatic tissue processor replaces water with alcohol during the dehydration process.
The automatic tissue processor replaces water with alcohol during the dehydration process.
Xylene is used to replace alcohol during the clearing process in tissue processing.
Xylene is used to replace alcohol during the clearing process in tissue processing.
Chloroform is not a clearing agent used in tissue processing.
Chloroform is not a clearing agent used in tissue processing.
The main function of the mechanical device in mechanical tissue processing is to control the timings by a timer.
The main function of the mechanical device in mechanical tissue processing is to control the timings by a timer.
During the clearing process, tissue is prepared for infiltration with dehydration solutions.
During the clearing process, tissue is prepared for infiltration with dehydration solutions.
During the dehydration process, the tissue is completely removed by passing the tissue through decreasing concentrations of dehydrating agents.
During the dehydration process, the tissue is completely removed by passing the tissue through decreasing concentrations of dehydrating agents.
80% ethanol is prepared by mixing 80 ml of absolute alcohol with 20 ml of distilled water.
80% ethanol is prepared by mixing 80 ml of absolute alcohol with 20 ml of distilled water.
Dehydration involves replacing the water in the tissue with diffusion.
Dehydration involves replacing the water in the tissue with diffusion.
70% ethanol is prepared by mixing 70 ml of absolute alcohol with 30 ml of distilled water.
70% ethanol is prepared by mixing 70 ml of absolute alcohol with 30 ml of distilled water.
In the dehydration process, the tissue is first properly fixed with 5% formalin saline.
In the dehydration process, the tissue is first properly fixed with 5% formalin saline.
