Fluke questions book

Question 1

In the mode of transmission for Schistosoma mansoni, penetration is in

a. Skin
b. Intestine
c. Blood
d. Mucous

Answer 1

a. Skin

Question 2

Sundathelphusa spp. is the second intermediate host for the

a. Schistosoma mansoni
b. Schistosoma japonicum
c. Clonorchis sinensis
d. Paragonimus westermani

Answer 2

d. Paragonimus westermani

Question 3

Human Clonorchiasis is possible through ingestion of:

a. Miracidium
b. Cercaria
c. Metacercaria
d. Redia

Answer 3

c. Metacercaria

Question 4

These members of platyhelminthes (flatworms) penetrate snails and multiply in sporocysts to increase their numbers.

a. Schistosomes
b. Echinostomids
c. Heterophyids
d. None of the above

Answer 4

a. Schistosomes

Question 5

True/False: The greatest pathology produced by Schistosoma mansoni is caused by adults consuming the blood of the host.

Answer 5

False

Question 6

True/False: Trematodes (flukes) are exclusively parasites of internal organs

Answer 6

False

Question 7

Also known as Chinese Liver Fluke

a. Opistorchis felineus
b. Clonorchis sinesis
c. Paragonimus westermanii
d. Opistorchis viverrini

Answer 7

b. Clonorchis sinensis

Question 8

Which among the Schistosoma spp. lays the smallest egg?

a. S. mansoni
b. S. japonicum
c. S. haematobium
d. S. mekongi
e. S. intercalatum

Answer 8

b. Schistosoma japonicum

Question 9

In its adult stage, which among the following species of Schistosoma is considered the smallest

a. S. mansoni
b. S. japonicum
c. S. haematobium
d. S. mekongi
e. S. intercalatum

Answer 9

a. Schistosoma mansoni

m = MINI

Question 10

Which is acid-fast positive, resembles S. haematobium, and has a diamond body

a. S. mansoni
b. S. japonicum
c. S. haematobium
d. S. mekongi
e. S. intercalatum

Answer 10

e. Schistosoma intercalatum

Question 11

Resembles S. japonicum but smaller and was seen from a river

a. S. mansoni
b. S. japonicum
c. S. haematobium
d. S. mekongi
e. S. intercalatum

Answer 11

d. Schistosoma mekongi

Question 12

Considered as the largest trematode with no cephalic cone, no shoulders, elongated, and its intestinal ceca are unbranched

a. Fasciola hepatica
b. Fasciolopsis buski
c. Fasciola gigantica
d. Ascaris lumbricoides

Answer 12

b. Fasciolopsis buski

Question 13

Cysteine proteases are excreted by this larva to help in immune modulation and migration of worms.

a. Cercaria
b. Schistosomule
c. Metacercaria
d. Miracidium

Answer 13

c. Metacercaria

Question 14

Technomyrmex spp. is an intermediate host for which parasite?

a. Dicrocoelium dendriticum
b. Paragonimus westermanii
c. Eurytrema pancreaticum
d. Haplorchis taichui

Answer 14

c. Eurytrema pancreaticum

Question 15

In copula behavior best describes which parasite?

a. Echinostomids
b. Heterophyids
c. Schistosomes
d. All of the above

Answer 15

c. Schistosomes

Question 16

True/False: Gonotyl is only present in Heterophyids including Metagonimus spp and Heterophyes spp.

Answer 16

False

Question 17

Which parasites have immature eggs when passed in stool?

a. Paragonimus, Echinostoma, Fasciola, Fasciolopsis
b. Schistosoma, Fasciola, Paragonimus
c. Schistosoma, Heterophyids, Clonorchis, Paragonimus
d. Paragonimus only

Answer 17

a. Paragonimus, Echinostoma, Fasciola, Fasciolopsis

Question 18

Which parasites have mature eggs when passed in stool?

a. Paragonimus, Echinostoma, Fasciola, Fasciolopsis
b. Schistosoma, Fasciola, Paragonimus Clonorchis
c. Schistosoma, Fasciola, Opistorchis, Clonorchis
d. Schistosoma, Heterophyids, Opistorchis, Clonorchis

Answer 18

d. Schistosoma, Heterophyids, Opisthorchis, Clonorchis

Question 19

True/False: Mode of transmission for all trematodes is ingestion of metacercaria

Answer 19

False