Microtome Knives: Types and Uses
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Questions and Answers

What characteristic makes the plano concave knife extremely sharp but delicate?

  • It is made entirely of nitrocellulose
  • One cutting surface is flat and the other is concave (correct)
  • It has a straight edge on both sides
  • It has a convex side with deep concavity
  • Which type of samples is the plano concave knife specifically used to cut?

  • Mineral specimens
  • Hard bone tissues
  • Soft samples like nitrocellulose embedded tissues (correct)
  • Metal alloys
  • Which surface of the plano concave knife is kept closest to the tissue block during cutting?

  • The jagged surface
  • The plane surface (correct)
  • The concave surface
  • The convex surface
  • What types of microtome use the plano concave knife?

    <p>Sledge and rotary microtome</p> Signup and view all the answers

    Why is the plano concave knife considered delicate?

    <p>Its concave side can be easily damaged</p> Signup and view all the answers

    Study Notes

    Types of Microtome Knife

    • A Plano Concave Knife has a flat cutting surface on one side and a concave cutting surface on the other, with varying degrees of concavity.
    • Plano Concave Knives are extremely sharp but also delicate.
    • They are used for cutting soft sample materials, such as nitrocellulose embedded tissues.
    • In a Plano Concave Knife, the plane surface is positioned closest to the tissue block.
    • Plano Concave Knives are compatible with both Sledge and rotary microtomes, with the notation "Plano => Sledge-rotary" indicating this compatibility.

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    Description

    Learn about the different types of microtome knives, including their characteristics and applications in histology and microscopy.

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