Instrumentation in Histopathology (Tissue Processing) Flashcards
Steps of tissue processing
- Numbering
- Fiaxation
- Decalcification
- Dehydration
- Clearing
- Impregnation
- Embedding
- blocking
- trimming
- sectioning
- staining
- mounting
- Labelling
Where you put or assign a specific accession number
Numbering
also known as accessioning
Numbering
preservation of tissues
Fixation
Only do if the specimen is osseous tissue/bone or the specimen are cartilages
Decalcification
Removal of calcium or lime salts
Decalcification
Removal of water
Dehydration
You need to make the tissue translucent in appearance
Clearing
Usage of paraffin to solidify the tissue for cutting
Impregnation
You put the tissue and the paraffin together with the mold
Embedding
The product of embedding where u produce a paraffin
block
Blocking
Because the tissue in the paraffin block will not fit to the microtome to be used for sectioning
Trimming
shape used in trimming
truncated pyramid
Production of tissue ribbons which will be stuck to the
slide
Sectioning
machine used in sectioning
microtome