Deck 8 Flashcards
What is an endogenous cyst of metacestodes?
A daughter cyst which buds from the germinal epithelium of a hyatid cyst and is capable of producing its own invaginated scolices.
Nemathelminthes are which type of worm?
roundworms
Strongyloides westeri is a parasite of?
horse & donkey
Toxocara vitullorum is a parasite of?
calf
How many moults and larval stages are there in nematodes?
4 larval stages and moults
L1-L2-L3-L4=larva
L5: immature adult
Which muscles are predilection sites for nematode detection? (especially trichinella)
Adult= small intestine
Larva: striated muscles: diaphragm, intercostal and masseter
Methods for diagnosis of Trichella spiralis?
Direct: tissue samples or digest (PM)
Indirect: serological method detecting specific Ab
Oesophagostomum is diagnosed by?
flotation method
Who have egg size 22 μm in nematodes?
XL: Nematodius, Marshallagia
Toxascaris canis, location and host?
FH: dog, intestine
(Paratenic hosts: Rodents, birds)
Species of large strongylus in horse?
Strongylus edentalus, vulgaris et equinus
Triodontophorus tenuicollis, serrates, brevicauda et minor
Small strongylus?
Trichonema spp (Eq)
Chabertia spp (Ru)
Oesophagostomum (Ru/su)
Stephanurus (su) e. Syngamus (birds)
Mammomonoganus (ru)
What is spiruroidea in cattle?
Spirurida: thelazia infection around eye, due to feeding of flies causes keranitis
Hystrongylus rubid is a parasite of?
pig
Oxyurida order - spp. In horse?
Oxyuris eqgui
Ascaris suum occurs in?
Small intestine of pig
Strongylus vulgaris is a parasite of ?
horse
LC of Toxacaris leonine?
direct
What is the site of Heterakis gallinarum?
Large intestine - caecum of birds
List of FH, site and IH for Capillaria plica?
IH: earth worm
FH: dog, cat, fox (urinary bladder)
