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Parasitology _L3,Trypanosoma brucei

L3, Trypanosoma brucei

Lecture video


part 2, Trypanosoma cruzi

  • Lecture video

MCQ

1-Vector of Trypanosoma brucei is ……?
a.Anopheles mosquito.
b.Testes fly.
c.House fly.
d.Black fly.

2-Local inflammatory lesion caused by trypanosoma brucei is called .……?
a.ulcer.
b.Chancre.
c.Calcification.
d.all of them.

3-Brain invasion in case of trypanosoma brucei is called……?
a.brain tumor.
b.brain hemorrhage.
c.meningeo encephalitis.
d.meningeo carcinoma.

4-Typical cells for sleeping sickness that present in Csf is called…..?
a.morular cells.
b.Rounded cells.
c.Giant cells.
d esinophill.

5-Chancre in Trypanosoma brucei is ch.ch by …..?
a.Pustular.
b.not itchy.
c. painful.
d.blue in color.

6-Winterbottom’ sign is an enlargement of lymph nodes of…..?
a.Abdomen.
b.Thorax.
c.Lower neck.
d.None of them.

7-Kora del’s sign is ch .ch by all of the following except …
a.Night sweats.
b.Weight loss.
c.Pulmonary infarction.
d.Liver enlargement.

8-Serological tests in case of trypanosoma brucei become positive after ..…
Of infection.
a.5 days.
b.3 weeks.
c.12 days.
d.4 hours.

9) Drug of choice in case of trypanosoma brucei involving c.n.s is …..
a. sumarin .
b. melarsoprol.
c. pentamidine.
d. metronidazole .

10)Chemoprophylaxis  against African sleeping sickness we use ……
a.Sumarin.
b.pentamidine .
c.melarsoprol.
d.none of them .


True or false


11. Infective stage of trypanosoma brucei is trypomastigote (   )

12.Epimastigote occur in vector (   )
 
13.trypomastigote occur in blood of vector  (  ) 

    Answers

1- Testes fly .
2- chancre.
3- meningeo encephalitis.
4- morular cells.
5- painful.
6- Lower neck.
7- pulmonary infarction.
8- 12 days .
9- melarsoprol.
10- sumarin.
11.  true
12. true 
13. false

MCQ 2

1-Monomorphic South American Trypanosomes is caused by ...... ?
a .Trypanosoma Brucei rhodesiense infection .
b.Trypanosoma Cruzi .
c T. brucei gambiense infection .

2-About Amastigote, all the following are true except . . . . . . . . . . . . . ?
a.large central nucleus and kinetoplast .
b.Has free flagellum .
c.spherical or ovoid .

3-Vector of Chaga's disease is . . . . . . . . . ?
a.Glossina .
b.Triatoma megista . 
c.tsetse fly .

4-infection by T. Cruzi occurs by all the following except . . . . . . . . . . . . . . ?
a.Contamination of vector bite wound with the vector faeces that contains the infective stage.
b.The infective stage passes with the vector saliva during blood meal
c.Congenital (trans placental) transmission
Blood transfusion.

5-Infective stage of Trypansoma Cruzi is . . . . . . . . . . . . . ?
a.Winged bug .
b.metacyclic trypomastigotes .
c.Amastigote .

6-. . . . . . . . . . . . is an inflammatory nodule at the bite site of the vector
a.Romana's sign
b.Chagoma
c.Chancre

7- . . . . . . . . . . . . . . is periorbital swelling which occurs when the T.cruzi protozoan enters the human body through the 
conjunctiva .
a.Chagoma .
b.Romana's sign .
c.Chancre .

8-In Chronic form of Chaga's ds , the following occurs . . . . . . . 
a.myocarditis
b.myxoedema
c.megacolon
d.megaoesophagus
e.all the above

9-For Diagnosis of Chaga's ds we can do Direct examination of blood film to detect trypomastlgotes or Culture on N.N.N. medium to detect epimastigotes.
a.False
b.True

          Answers


1B
2B
3B
4B
5B
6B
7B
8E
9B




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