PP 3 Flashcards
What hatches from a Pseudophyllidean egg
Coracidium = ciliated embryo
What comes out from egg of Digenea?
Miracidium
Nemathelminthes are which type of worm ?
Round worm = Nematode
First IH of dicrocoelium ?
land snail (Zebrina spp, Helicella spp)
Which method do we use for diagnosis of lungworms of RU ?
larvoscopy
Which method do we use for diagnosis of intravital worms of RU ?
Flotation method with Breza solution
Sedimentation methods
Toxocara canis–in which animal and where?
Nematode of carnivore
FH : dog, fox, Human
Location : S.I
Diagnosis method of fasciolosis
- Clinical signs and history
- Serological: GLDH ,GGT,ALT,AST, ELISA
- Ovoscopy : by sedimendation method
- Passive haemoglutination test ( finding Ab)
Pathogenesis of F.hepatica
- Juvenile stages : release cathepsin (proteolytic enzyme) -hepatitis traumatica, fibrosis haemorrhage + modulation of host innate and adaptive immune system
- Adult stages : bile duct à damage to biliary mucosa by the cuticular spines - cholangitis
Fasciola and dicrocelium comparison
Differences: D.dendriticum
1. release embryonated egg
2. lack redia stage
3. migration through S.I
4. 2 IH
Fascilosis buski FH\IH\location
FH : pig, humans
IH : planorbid molluscs (Segmentina and Hippeutis)
Location : duodenum
Geo : Asia
Metagonimus in which animals
FH : dog, cats, pig, human, rats, pelican
IH :
- 1 IH : water snail
- 2 IH : sweet fish/ cyprinid fish
Which stage is missing in dicrocelium
Redia
In which control cannot be achieved by fencing water areas around pasture
Dicrocelium as the IH are not water snails but land snails
Schisostoma site
Intravascular : mesenteric veins and nasal veins
Prostagonimus host: (family: prostagonamidae)
Poultry
Trematode in lung
paragonimus- lung fluke in car
sometimes- fasciola hepatica in cattle
FH and IH of paragonimus: (family: trogolotrematidae)
FH: pig,dog, cat, ru, car, humans, mammals
IH :
- 1 IH : water snail
- 2 IH : cray fish or fresh water crabs.
Trematode stages
Egg (diagnostic stage) -miracidium - sporocyst - redia -cercaria - metacercaria (infective stage) - adult
In Pseudopyillidea, what stage comes after the adult?
Unembryonated egg
