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Microtomy · Pathology

Which of the following describes the 'clearance angle' in microtomy?

  1. The angle between the block face and the knife back
  2. The angle between the lower facet of the knife and the face of the block
  3. The angle of the knife's cutting edge itself
  4. The angle at which the knife is tilted toward the technician
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Correct answer: The angle between the lower facet of the knife and the face of the block

The clearance angle prevents the knife facet from rubbing against the block face, which would cause friction and chatter. An optimal clearance angle is typically between 3 to 8 degrees.

Difficulty: Medium Question 3 of 20

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