SGU Parasitology Midterm
Terms in this set (73)
Is mesocestoides zoonotic?
yes - intestinal form in humans
Tetrathyridia is found in the peritoneal cavity of mammals and reptiles due to ______
What species is the host of anoplocephala perfoliata?
What is the site for anoplocephala perfoliata?
small and large intestine
What type of life cycle does anoplocephala perfoliata have?
indirect life cycle
What is the intermediate host of anoplocephala perfoliata?
How does anoplocephala perfoliata present in horses?
infection, colic, blockage
What species is the host for moniezia?
What is the site for moniezia?
How does moniezia present in ruminants?
How is moniezia diagnosed?
demonstrate proglottids/eggs in feces
Diphyllobothrium latum is a tapeworm found in what species?
Is diphyllobothrium latum zoonotic?
What tapeworms can cause megaloblastic anemia?
How do humans get infected with diphyllobothrium latum?
eating raw fish
What are the 2 intermediate host stages of spirometra?
procercoid and plerocercoid
How do humans get infected with spirometra?
by eating frogs and snakes or applying poultice to sore eyes
What is normally the shape of trematodes?
True/False: most trematodes are hermaphroditic
**except for schistosomes
What is the infective stage of fasciola hepatica?
What is the most common fluke of ruminants?
How do humans get infected with fasciola hepatica?
consume raw infected plants (watercress)
Where does the adult stage of fasciola hepatica live in hosts?
Ovine fasciolosis can be complicated by infection with ______
A chronic form of _____ causes edematous subcutaneous swelling
In bovine fasciolosis, flukes migrate to _____
What is the chronic pathology for bovine fasciolosis?
bile duct inflammation and fibrosis
What is the infective stage of fascioloides magna?
What is the definitive host of fascioloides magna?
What is the aberrent host of fascioloides magna?
How is fascioloides magna diagnosed?
clinical signs, history of fluke infection, animal from a marshy area
How can fascioloides magna be prevented?
What is the shape of paramphistomum cervi?
What fluke is referred to as a Lancet Fluke?
Is dicrocoelium dendriticum zoonotic?
What fluke alters behavior in ants?
True/False: bovine vaccine is available for dicrocoelium dendriticum
What is the infective stage of schistosomes?
What flukes cause "swimmers itch"?
schistosomes or heterobilharzia americana
What are signs of schistosome infection?
hepatomegaly and splenomegaly
What is the intermediate host for heterobilharzia americana?
What is the infective stage of heterobilharzia americana?
What fluke causes a starry sky appearance in the liver of horses?
Nanophyetus salmincola is a vector for which bacteria?
What is the infective stage of nanophyetus salmincola?
Is nanophyetus salmincola zoonotic?
How do humans get infected with nanophyetus salmincola?
ingestion of incompletely cooked salmon or trout
Where is paragonimus kellicotti found in the host?
What is the infective stage of paragonimus kellicotti?
Is paragonimus kellicotti zoonotic?
How do humans get infected with paragonimus kellicotti?
eating undercooked crawfish
What fluke causes signet ring-like lesions in the lung?
What are the clinical signs of paragonimus kellicotti?
respiratory infections and blood stained sputum
Is alaria zoonotic?
What is the larval form infective for the definitive host of mesocestoididae?
Which flukes have 2 intermediate hosts?
What phylum is "thorny head worms"
How do thorny-head worms absorb nutrients?
through the tegument
**no digestive tract!
What shape are the thorny head worm eggs?
What is the intermediate host for acanthocephala?
What is the infective stage of acanthocephala?
What is the thorny head worm of swine that eat beetles?
What part of the fluke life cycle is the infective stage for snails?
Where does a sporocyst of trematodes develop?
inside the first intermediate host
What is the infective stage of schistosomes and heterobilharzia for the 2nd intermediate host?
What is the infective stage of flukes for the definitive host?
What are the life cycle stages of flukes?
egg --> micracidium --> sporocyst --> rediae --> cercariae --> metacercaria --> fluke
What are the intermediate hosts for dicrocoelium dendriticum?
land snail and brown ant
What are the intermediate hosts for paragonimus?
snail and crawfish
What are the intermediate hosts for nanophyetus?
snail and salmon/salamander
What are the intermediate hosts for alaria?
snail and frogs
Where is paramphistomum cervi found?
in the rumen
True/False: paramphistomum cervi is relatively harmelss in the the rumen
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