Practical Exam 2 Flashcards
(25 cards)
Liver Flukes:
Fasciola hepatica, Fasciola gigantica, Clonorchis sinensis
F. hepatica disease
Halzoun; Fascioliasis, Sheep liver rot
F. hepatica 1st IH:
Galba truncatula
F. hepatica 2nd IH
Watercress
F. hepatica infective stage
ingestion of freshwater plants w metacercaria
fasciola hepatica diagnostic stage
Unembryonated eggs in feces
Disease caused by F. hepatica is termed; and affects which organ?
Fascioliasis; Bile duct
Common name of F. gigantica
Giant Liver Fluke
2 differences between f. hepatica and gigantica
More prominent shoulders (hepatica)
Larger (gigantica)
Important detail: shoulders
Details about F. hepatica/ F. gigantica/ F. buski eggs:
Fasciola spp. eggs
Large
Ovoid
Operculated
no shoulders or terminal knob
Common name of c. sinensis
Chinese liver fluke
C. sinensis MOT:
Ingestion of freshwater fish with metacercaria
C. Sinensis DS:
Embryonated egg in feces
Definitive host of F. hepatica?
SHEEP
Man: Accidental
C. sinensis 1st and 2nd IH:
1: Bulinus spp. (Fish)
2: Freshwater fish
C. Sinensis egg appearance:
Operculated, terminal (small) knob, prominent shoulders
C. Sinensis adult appearance:
Two branching testes below tapering intestines
Intestinal trematodes:
- Fasciolopsis buski
- Heterophyes heterophyes
- Echinostoma ilocanum
BUSK HE
Common name for F. buski
Giant INTESTINAL fluke
- Largest intestinal Trematode*
- Smallest is heterophyes heterophyes*
IS and MOT of F. buski
Metacercaria
Ingestion of freshwater plant with metacercaria
DS of f. buski
Unembryonated eggs in feces
Habitat of F. buski
SI
DH of F. buski
Humans, Pig
1st IS of F. buski
Snail (segmentina spp.)
