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Questions and Answers
What characteristic makes the plano concave knife extremely sharp but delicate?
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?
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?
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?
What types of microtome use the plano concave knife?
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Why is the plano concave knife considered delicate?
Why is the plano concave knife considered delicate?
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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.
