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Histology lec
Histology lecture week 1
Question | Answer |
---|---|
1m = | 1000 millimetres |
1mm | 1000 micrometres |
1 micrometre = | 1 nanometres |
resolving power | the smallest distance between two particles at which they can be seen as separate objects |
How can resolution be improved? | Staining, Increasing refraction index and contrast by water- or alcohol soluable compounds, treatment of sections, impregnation or physical affinity, chemical affinity as a result of chemical reaction. |
haematoxylin and eosin | Most commonly used stain. A "psuedo" basic dye( haemotoxylin) to differentiate nuclei (blue). Followd by an acidic dye (eosin) highlights everything else. |
endo | within |
epi | around |
thelium | layer |
simple | single |
stratified | multiple |
cuboidal | square shaped |
collumnar | rectangular |
squamous | flattened |