Parasitology Exam

Protozoa

Identify the organism (50 points)

1.  marsh disease, Maurer's clefts

2.  self-limiting disease, cheesy diarrhea, infected soil, caecum

3.  median bodies, sucking discs, von Leewenhoek

4.  Losch, St. Petersburg, dog

5.  Philippines, swine

6.  8-14 micrometers, quadrinucleate cyst, salamanders, birds, man

7.  butchers, steak tartare

8.  25 micrometers, octanucleate

9.  myocarditis, Glossina morsitans

10.  transmission by trophozoite, multiflagellate, Flagyl

11.  venereal disease, endometritis, undulating membrane, bovine

12.  layman vaccination, dermal pathology, soil pupation

13.  cardiac arrythmia, triatomids, raccoons in Maryland

14.  chimpanzees, possible zoonosis, rosettes

15.  vampires

16.  vivacious, tertian

17.  lemon shape,spiral cytosome

18.  polynucleate, longitudinal fission, cilia

19.  spermatophagy, apical complex, Lumbricus terrestris

20.  flies, roaches, carriers, hyaluronidase, cysts

21.  oral, flagellated, humans

22.  plump, short undulating membrane, hydrogenosomes

23.  dermal lesion, huge trophozoites up to 1000 micrometers, piscean

24.  sneezing, amastigotes, Brazil

15.  hyperparasite, pseudopodia

II.  Discuss the following:

1.  Describe three different methods of diagnosing an infection with Trypanosoma cruzi.   (9 points)

2.  Name any 5 pioneers in the field of protozoan parasitology and briefly state their contribution.  (15 points)

3.  What immunological feature of Trypanosoma brucei gambiense and T. b. rhodesiense make them so pathological in comparison to T. lewisi?  (10 points)

4.  Compare in chart form, the human infecting Plasmodium species relative to periodicity, percentage of incidence, life cycle pattern, and schizont morphology.  (16 points)