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During section cutting, the sections fail to form ribbons due to the surfaces and edges of the block that are not parallel. What could be the best possible remedy for this?


A) Repeat impregnation
B) Repeat paraffin impregnation, and re-embed
C) Re-trim the block
D) Repeat the whole procedure

E) A) and B)
F) C) and D)

Correct Answer

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This type of knife measures usually about 120 mm in length with both sides concave and it is recommended for cutting paraffin embedded sections on a rotary microtome.


A) Biconcave knife
B) Plane-Concave knife
C) Plane-wedge knife
D) None of the above

E) None of the above
F) B) and C)

Correct Answer

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Which of the following is not part of a rotary microtome?


A) Flywheel
B) Pawl
C) Base
D) Stage

E) A) and D)
F) C) and D)

Correct Answer

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This type of hone is much coarser and is used only for badly nicked knives?


A) Belgium Yellow stone
B) Arkansas stone
C) Fine Carborundum stone
D) Either B or C

E) B) and D)
F) None of the above

Correct Answer

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In Celloidin sections, what is the usual thickness range of the cuts made?


A) 10 to 15 microns
B) 5 to 10 microns
C) 3 to 5 microns
D) 1 to 3 microns

E) A) and B)
F) C) and D)

Correct Answer

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In a Cold microtome, the needed temperature that must be maintained is between:


A) -5 to -15 degrees Celsius
B) -35 t0 -45 degrees Celsius
C) -5 to -30 degrees Celsius
D) -1 to -10 degrees Celsius

E) A) and B)
F) C) and D)

Correct Answer

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What do you call the process whereby tissues are cut into uniformly thin slices or sections with the aid of a machine?


A) Cutting
B) Sectioning
C) Honing
D) Stropping

E) None of the above
F) All of the above

Correct Answer

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This involves the removal of gross nicks on the knife edge to remove blemishes and grinding the cutting edge of the knife on a stone to acquire an even edge. What do you call this procedure?


A) Stropping
B) Honing
C) Sharpening
D) Cutting

E) B) and C)
F) A) and D)

Correct Answer

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All of the following descriptions are true about Cryostat or the Cold Microtome, except:


A) Cryostat is an apparatus used in fresh tissue microtomy.
B) It is primarily used for cutting tissue sections at 0.5 micra.
C) It is capable of freezing the tissue into the block holder to the correct degree of hardness to facilitate easier and faster sectioning.
D) It permits rapid preparation of tissue biopsies for surgical Pathology.

E) A) and D)
F) All of the above

Correct Answer

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All of the following statements are true regarding the care of a microtome, except:


A) After sectioning, all the accumulated paraffin and small pieces of tissues must be brushed away with steel brush.
B) After carefully drying the machine and knife holder, the parts should be wiped with xylol.
C) Movable portions should be oiled thoroughly to prevent rusting.
D) Cover the microtome when not in use.

E) None of the above
F) A) and D)

Correct Answer

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