HT Histotechnician

Category - Microtomy

In what angle is the knife usually tilted in the microtome?
  1. 35-45 degrees
  2. 25-35 degrees
  3. 15-25 degrees
  4. 0 -15 degrees
Explanation
Answer: D - 0 - 15 degrees
The knife is usually tilted at 0 to 15 degrees angulation on a microtome to allow a clearance angle between the cutting facet and the tissue block. Biconcave knives require smaller clearance angles than wedge-shaped knives. The other options are not good angles to use for tilting the knife in the microtome.
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