Trematodes Flashcards
Common name of Platyhelminthes Trematodes.
Flukes
[2] Sub divided into two: Platyhelminthes Trematodes
- Monoecious
- Diecious
flattened or leaf-shaped bodies.
[platyhelminthes trematodes]
Monoecious
hermaphroditic
[platyhelminthes trematodes]
Monoecious
needs 2 intermediate host.
[platyhelminthes trematodes]
Monoecious
producing egg.
[platyhelminthes trematodes]
Monoecious
cylindrical bodies.
[platyhelminthes trematodes]
Diecious
sexes are separate.
[platyhelminthes trematodes]
Diecious
need 1 intermediate host.
[platyhelminthes trematodes]
Diecious
produce non-operculum egg.
[platyhelminthes trematodes]
Diecious
The trematodes or flukes are classified under?
Phylum Platyhelminthes
[3] Life cycle of trematodes:
- Egg stage
- Larval stage
- Adult stage
Eggs are operculated.
Trematodes (flukes)
Infective stage to the final host is the metacercaria.
Trematodes (flukes)
Mode of transmission is fecal oral (except Schistosoma spp.)
Trematodes (flukes)
Requires 2 intermediate host.
Trematodes (flukes)
Eggs of most species have a lid called “operculum”.
Trematodes (flukes)
Eggs of most species have a lid called?
operculum
Adult covered by a tegument or skin.
Trematodes (flukes)
Excretory system includes flame cells, capillaries, collecting tubules and an excretory bladder.
Trematodes (flukes)
Ingestion of metacercaria through improperly cooked 2nd I.H
Mode of transmission of Trematodes.
Skin penetration by fork-tailed cercaria in flukes.
Mode of transmission of Trematodes.
[5] Larval stage of Platyhelminthes Trematodes.
- Miracidium
- Sporocyst
- Redia
- Cercariae
- Metacercariae
Free swimming stage; ciliated embryo which hatches in water to penetrate the 1st intermediate host.
[larval stage]
Miracidium