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VT208 Parasitology HW #1 (Ch 1+2 terms)
Diagnostic Parasitology for Veterinary Technicians Ch 1+2
60
Veterinary Medicine
Not Applicable
09/04/2018

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Term
Aberrant parasite
Definition
when a parasite wanders from its normal site of an infection on the host (see erratic parasite)
Term
Acanthocephalins
Definition
"thorny headed worms" a phylum similar in appearance to nematodes with a spiny proboscis on their anterior end
Term
Acaricides
Definition
compounds that kill ticks and mites
Term
Adulticide
Definition
a chemical that kills the adult form of a parasite
Term
Amicrofilaremic
Definition
microfilaria (an immature form of nematodes like heartworm) are absent
Term
Annelids
Definition
a phylum of segmented worms that includes leeches
Term
Anthelmintics
Definition
compounds developed to kill roundworms, tapeworms, flukes, and other thorny headed worms
Term
Antiprotozoals
Definition
compounds developed to kill protozoan organisms
Term
Arachnid
Definition
a class of arthropods including ticks and mites
Term
Ascarids
Definition
a genus of the phylum nematodes known as "[small intestinal] roundworms"
Term
Commensalism
Definition
a symbiotic relationship where one organism benefits and it neither helps nor harms the other
Term
Common name
Definition
the everyday name of a species
Term
Definitive host
Definition
the host harboring the mature, sexual, or adult stages of the parasite
Term
Ectoparasite
Definition
living on the body of its host
Term
Endoparasite
Definition
living within the host's body
Term
Erratic parasite
Definition
when an parasite wanders from its normal site of infection on the host (see aberrant parasite)
Term
Euryxenous parasite
Definition
a parasite with a broad range of hosts
Term
Facultative parasite
Definition
free living organisms that can become parasitic in certain hosts
Term
Free-living parasite
Definition
a parasite that can live a nonparasitic existence outside its hosts
Term
Genus name
Definition
the group in which a species belongs, the first word and capitalized in the scientific name
Term
Helminths
Definition
parasitic worms
Term
Homoxenous parasite
Definition
a parasite infecting only one type of host (see monoxenous)
Term
Host
Definition
the animal a parasite settles on or within
Term
Incidental parasite
Definition
when a parasite occurs in a different host than it usually inhabits
Term
Infection
Definition
produced by an endoparasite
Term
Infestation
Definition
produced by an ectoparasite
Term
Insecta
Definition
a class of arthropods with three part bodies, six legs, and antennae that includes fleas and lice
Term
Insecticides
Definition
compounds that kill insects
Term
Intermediate host
Definition
the host harboring the larval, immature, juvenile, or asexual life stages of a parasite
Term
Larviparous
Definition
bearing larvae instead of eggs
Term
Life cycle
Definition
the development of a parasite throughout various life stages
Term
Linnaean Classification Scheme
Definition
the taxonomic classification of species where they are referred to in scientific Latin names
Term
Microfilaricide
Definition
a chemical that kills the microfilariae of heartworm
Term
Monoxenous parasite
Definition
a parasite infecting only one type of host (see homoxenous)
Term
Mutualism
Definition
when both organisms in a symbiotic relationship benefit
Term
Nematode
Definition
"roundworms" phylum. a type of elongated unsegmented cylindric worm. the largest group of helminths parasitizing domestic animals
Term
Obligatory parasite
Definition
an organism that can only survive parasitically
Term
Oviparous
Definition
egg laying
Term
Ovoviviparous
Definition
producing eggs that are hatched within the body of the parent
Term
Parasite
Definition
an organism which lives off the host and derives benefit at the other's expense
Term
Parasitiasis
Definition
the parasite is present and potentially pathogenic, but the animal does not exhibit outward signs of disease.
Term
Parasitosis
Definition
the parasite is present and causing obvious harm to its host
Term
Parasiticides
Definition
chemical compounds targeted at specific internal and external parasites
Term
Parasitology
Definition
the study of parasitic relationships and their effects on the body
Term
Paratenic host
Definition
an intermediate host where a parasite remains arrested within its tissue until it reaches the definitive host to continue developing (see transport host)
Term
Pathogenecity
Definition
the potential of an organism to cause disease in a host
Term
Periodic parasite
Definition
a parasite that makes frequent, short trips to a host to obtain nourishment or other benefits
Term
Phoresis
Definition
the smaller member of a symbiotic relationship is physically carried by tthe larger one
Term
Platyhelminthes
Definition
"flat worms" a phylum that includes the class trematoda/flukes
Term
Protozoan parasite
Definition
a parasitic unicellular organism
Term
Pseudoparasite
Definition
nonparasitic objects or organisms that are mistaken as such
Term
Reservoir host
Definition
a vertebrae host in which the parasite occurs naturally and is a source of infection for humans and domestic animals, can maintain parasite when its not affecting intended targets without ill affect
Term
Scientific name
Definition
the formal two word Latin name of a species (binomial nomenclature)
Term
Specific epithet
Definition
the second part of a scientific name distinguishing the species from others in its genus
Term
Stenoxenous parasite
Definition
a parasite with a narrow host range
Term
Symbiosis
Definition
any association between two organisms of different species
Term
Transport host
Definition
an intermediate host where a parasite remains arrested within its tissue until it reaches the definitive host to continue developing (see paratenic host)
Term
Trematodes
Definition
"flukes" a class of parasitic animals in the phylum platyhelminthes
Term
Vectors
Definition
an organism that acts as a transport of the infectious pathogen to the host
Term
Zoonosis
Definition
a disease transmissible from animals to humans
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