Question

Which microtome requires the use of a double concave knife?

• A. Rotary Microtome
• B. Rocking Microtome
• C. Freezing Microtome
• D. Sledge Microtome

Hint:

{Rocking (Cambridge) microtome} commonly uses a {double concave knife} for cutting paraffin-embedded tissue sections.

Answer 1

The Correct Option is B

Concept: A microtome is an instrument used in histology to cut extremely thin sections of tissue for microscopic examination. Different types of microtomes use different blades depending on the type of section required. The rocking microtome, also known as the Cambridge microtome, commonly uses a double concave knife. This knife shape allows smooth and precise sectioning of paraffin-embedded tissues.
Step 1: Identify the microtome that uses a double concave knife.

• Rotary Microtome – Commonly used for routine paraffin sections.
• Rocking Microtome – Uses a double concave knife.
• Freezing Microtome – Used for frozen sections.
• Sledge Microtome – Used for cutting large or hard tissue blocks.

Thus, the microtome that requires a double concave knife is the Rocking Microtome.