Deck 17 Flashcards
in the life cycle of a cyclophyllidean tapeworm stage in the vertebrae (mites, insects) is called a
cysticercoid
which of the following types of helminths has an intermediate host in the life cycle:
a. Muellerius capillari
b. Trichuris ovis
c. Monieizia expanza
d. Syngamus trachea
e. none of the above
Muellerius capillaris
Moniezia expansa
describe the egg of nematodirus spathiger
xl
oval
2 thin shells
unembryonated with 8 blastomers
light grey
egg of muellerius capillaris
egg of trichostrongylus
egg of oxyuris equi
egg of anaplocephala
trematode in lung
paragonimus - lung fluke in car
f.hepatica - sometimes in lung of cattle (due to ectopic migration)
trematode stages and LC
egg (dg stage) -> miracidium -> sporocyst -> red -> cercaria -> metacercaria (inf stage) -> adult
How would you confirm Aelurostrongylus abstrusus?
a) find larvae with a “S” shaped spine at the posterior end in sputum or feces
b) find operculated eggs on fecal flotation
c) do a serum antibody test for Aelurostrongylus
d) find larvated ova on fecal flotation
megaloblastic anemia develops during parasitism of
diphyllobothrium datum
what is the infectious stage in Schistosome haematobium infection
furcocercaria
explain how Schistosome haematobium migrates in the host body after infection. Specify exactly
furcocercaria looses tail –> schistosomula –> enter vascular system, and mature in portal vessels –> migrate towards mesenteric or vesicular veins. Male and female start to reproduce
dracunculus, Habronem and dirofilaria are classified in the order Spirurida. What do they have in common
all require arthropods as IH
describe the basic clinical signs of toxocara canis infection in puppies
diarrhea
vomiting
weight loss
retarded development
sometimes asymptomatic
what anitparasitic drugs would you suggest for deworming dust digs against toxocara canis- List at least 4 active substances
Emodepsin, Fenbendazol, Milbemycin, Moxidektin, Pyrantel, Oxibendazol
what are the basic parts of the tapeworm body
scolex(head)
short neck and strobila (proglottids)
strongyliform type of esophagus has
stick.shaped with a cylindrical middle part attached to the bulbus
cysticercus fasciolaris is a larvocyst of
taeni taeniformis
in fasciola hepatica life cycle, the larval fluke get from gut to liver
via body cavity
