Parasitology Exam

Flukes and Tapeworms

I.  Identify (50 points)

1.  swimmer's itch

2.  Finland, raw fish

3.  pipestem fibrosis, Fossaria

4.  Cysticercous cellulosae

5.  Oncomelania formosona, furcocercous, rodents

6.  small intestine, raw fish

7.  dwarf, Moscow, armed

8.  spiny collar, raw snails

9.  Korea, Japan, raw crabs

10.  fleas, armed, cysticercoids

11.  bladder veins, Egypt

12.  unarmed, lateral genital pores, striated embryophore, 2000 proglottids

13.  land snails, ants, liver

14.  frogs, rectum, fluke

15.  Neorikettsia salmincola

16.  gid, coenuriasis

17.  New World, single intermediate host, trematode

18.  double set of reproductive organs, sheep

19.  Kamchatka peninsula, foxes

20.  water chestnuts, small intestine

21.  rats, 3 testes, Tribolium confusum

22.  carp, Parafossarulus, pleurolophocercous

23.  Kenya, dog intestine

24.  rabbits, dogs

25.  Japan, marine fish

II.  Match the related item in the right column to the word in the left column. (10 points)

_____1.  microcercous                                                                                                        a.  insect intermediate host

_____2.  plerocercoid                                                                                                          b.  Laurer's canal

_____3.  furcocercous                                                                                                          c.  alveolar

_____4.  snail                                                                                                                       d.  bothria

_____5.  seminal receptacle                                                                                                   e.  ant

_____6.  cysticercoid                                                                                                             f.  sparganosis

_____7.  scolex                                                                                                                      g.  acraspedote

_____8.  distome                                                                                                                    h.  rudimentary tail

_____9.  hydatid                                                                                                                     i.  embryonated

____10.  proglottid                                                                                                                 j.  small, lateral spine on ova

                                                                                                                                              k.  oral sucker and anteroventral acetabulum

III.  The organisms most closely described by the above matches are: (10 points)

_____1.

_____2.

_____3.

_____4.

_____5.

_____6.

_____7.

_____8.

_____9.

____10.

IV.  Fill in the chart. (20 points)

ORGANISM                  INTERMEDIATE HOST                 DEFINITIVE HOST                  INFECTIVE STAGE/DEFINITIVE HOST                        ORGAN INFECTED/DEFINITIVE HOST

Echinococcus granulosus

                                                pig

                                                                                                       Bengal tiger

                                                                                                                                                                        cercaria

                                                                                                                                                                                                                                                              liver

V.  Name the organism and describe the circumstances which lead to the diseases, cysticercosis, sparganosis, and hydatid disease.  What do each have in common relative to the life cycle?  How is hydatid disease different?  (10 points)