Trematodes (PPT) Flashcards
Helminths without body cavity
Acoelomate
More than 1 host
Heteroxenous
One or more sexually reproducing embryonic stages
Polyembryony
means genital suckers
Gonotyl
Gross morphology of trematodes:
- All flukes have leaf like appearance except Schistosoma
- All flukes have metacercarias infective stage except Schistosoma
- All flukes are hermaphrodytic except Schistosoma
- All flukes has operculated egg except Schistosoma
Orders under Sub-Class Digenia:
- Order Echinostomatiformes
- Order Strigeatida
- Order Opistochiformes
- Order Plagiorchiformes
Family under Order Echinostomatiformes:
- Family Fasciolidae
- Family Echinostomatidae
What Order in which the adult lives in small intestine and biliary passages of vertebrates
Order Echinostomatiformes and Order Plagiorchiformes
An Order in which the genital suckers are present
Order Echinostomatiformes
An Order in which the acetabulum in adult is midventral
Order Echinostomatiformes
An Order in which the adult body is with spines
Order Echinostomatiformes
An Order in which the uterus is extending from ovary to preacetabular area
Order Echinostomatiformes
Egg characteristics of Order Echinostomatiformes
Large operculated
Species under Family Fasciolidae
- Fasciola hepatica
- Fasciolopsis buski
Species under Family Echinostomatidea
- Echinostoma ilocanum
- Artyechinostoma malayanum
What Order in which its definitive stage is monoecious or dioecious
Order Strigeatida
What Order has an anterior sucker which is almost always present
Order Strigeatida
True or False:
Order Strigeatida’s acetabula is present
TRUE
What Order is known for its cercaria having a forktail
Order Strigeatida
An Order who has two pairs of flame cells in miracidium
Order Strigeatida
Species under Family Schistosomatidae
Schistosoma spp
An Order in which the adults live in the intestinal or biliary tract of mammals, birds, reptiles or fish
Order Opistorchiformes
An Order in which the acetabulum in adult is midventral and its body is with spines
Order Opistorchiformes
An Order in which its eggs are small, thick-shelled, generally less than 40 umand fully develop when laid
Order Opistorchiformes
An Order in which its eggs hatch in molluscan host
Order Opistorchiformes
An Order in which its cercaria encysts in the fish
Order Opistorchiformes
An Order in which its cercarial tail is not forked
Order Opistorchiformes
Species under Family Opistorchidae
- Opistorchis spp
- Clonorchis sinensis
Species under Family Heterophyidae
- Heterophyes heterophyes
- Metagonimus yokogawai
Family under Order Strigeatida:
Family Schistosomatidae
Family under Order Opistorchiformes:
- Family Opistorchidae
- Family Heterophyidae
An Order in which its adult body is with spines and its eggs are small to medium
Order Plagiorchiformes
An Order in which its operculum is thick
Order Plagiorchiformes
An Order in which its miracidium is fully developed when laid
Order Plagiorchiformes
An Order that encysts in crustaceans, insects, molluscan, or other intermediate host
Order Plagiorchiformes
Family under Order Plagiorchiformes:
Family Troglotrematidae
Species under Family Troglotrematidae
Paragonimus westermani
