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Chapter 7 & 8 Parasitology
Trematodes
20
Veterinary Medicine
Undergraduate 1
01/16/2012

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Term
Monogenetic Fluke
Definition
ectoparasites of fish, amphibians, and reptiles.
Term
Digenetic Fluke
Definition
endoparasitic flukes of both domestic and wild animals.
Term
Oral Sucker
Definition
muscular opening at one end of a fluke that connects to the pharynx.
Term
Ventral Sucker (acetabulum)
Definition
a organ used to hold the fluke in place.
Term
common name for trematodes
Definition
flukes
Term
common name for cestodes
Definition
tapeworms
Term
miracidium
Definition
the life stage where egg meets water and hatches, this stage has cilia to swim.
Term
sporocyst
Definition
the life stage where the fluke is the shape of a sac where the next stage develops.
Term
redia
Definition
the life stage of the fluke that develops inside the sporocyst. inside of which the next life stage develops.
Term
cercarial
Definition
the life stage of the fluke that is expelled from the each redia, this stage can take one of three paths.
Term
Hermaphrodism
Definition
and organism that has both male and female reproductive parts.
Term
Operculum
Definition
a door or opening on either side of a fluke egg .
Term
Miracidium
Definition
developmental stage following penetration of the miracidium into the snail
Term
Metacercaria
Definition
encysted stage in the life cycle of the trematode usually found on vegetation or within a second intermediate host.
Term
Adult Fluke
Definition
flatted, unsegmented, leaflike bodies.
Term
dead-end hosts
Definition
a species that is not generally used as a host for a parasite but if used the life cycle cannot continue.
Term
Amphistome
Definition
A group of flukes that rumen flukes belong to.
Term
Schistosome
Definition
"Split body" unique flukes that are not hermaphroditic.
Term
Schistosome cercarial dermatitis
Definition
a condition in which avian schistosomes infect a human host.
Term
black spot
Definition
a condition reaction fish get to the presence of metacercaria.
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