Applied histology

 Important MCQs in applied histology_1: 

Q1 - which of the following can be used as  fixatives?

A 10% natural buffered Formalin

B-  Bouin’s fluid

C- Carnoy’s fluid

D- all of the above

Q2- what should be the ratio between the volume of the tissue and the fixative

A-   1 ratio 5

B-    1 : 10

C-    1 ratio 20

D-    1 ratio 100

Q 3 - what is the usual concentration of the commercial formaldehyde available

A- 7 to 10%

B- 17 to 27%

C- 37 to 40%

D-40 to 50%

Q4 - which is the most commonly used fixative in clinical practice?

A-   10% natural buffered Formalin

B-     Zenkres fluid

C-    Bouins fluid

D-   Cornoy’s fluid

Q-5- Bouins fluid is yellow because of the presence of –

A-   chloroform

B-    picric acid

C-    formaldehyde

D-    Iodine

Q6 - Which of the following…………… is a components of Zenkar’s fluids ?

A-   mercuric chloride

B-    potassium dichromate

C-    sodium sulphate

D-   all of the above  

Q 7 - which of the the following acid may be used for decalcification ?

A- 25% sulfuric acid

B- 5% nitric acid

C- 20% hydrochloric acid

D-30% orthophosphoric Acid

 Q8 -which of the following acid is used in the electrolytic method for decalcification?

A-    formic acid

B-    nitric acid

C-    HCL

D-   Acetic

Q9- tissue Processing Unit are  also known as ?

A-   HistoKinette

B-    Histomat

C-    Histobath

D-   Histoform

Q10 – The Section cutting Machine is Known as----

A-   Microtome

B-    Histomate

C-    Histocut

D-   Histoform