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Parasitology definitions assignment
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Veterinary Medicine
Undergraduate 4
09/07/2017

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Term
Aberrant parasite
Definition
parasite that has wandered from its usual site of infection into another organ/location in which it does not usually live
Also called erratic parasite.
Term
Acanthocephalins
Definition
thorny headed worms
Term
Adulticide
Definition
insecticide used to kill adult insects
Term
Amicrofilaremic
Definition
refers to absence ofimmature filarial parasites
Term
Annelids
Definition
earthworms and leeches
Term
Anthelmintics
Definition
chemical compounds used to kill roundworms, tapeworms, flukes and thorny headed worms
Term
Antiprotozoals
Definition
chemical compounds used to kill protozoans
Term
Arachnid
Definition
an arthropod of class Arachnida, such as a spider
Term
Ascarids
Definition
a family of parasites (nemotodes) that often live in the intestines of vertebrates
Term
Commendalism
Definition
a symbiotic relationship in which one symbiont benefits while neither benefits nor is harmed
Term
Common name
Definition
the name for an organism in different regions of the world
Term
Definitive host
Definition
a host that harbors the adult sexual or mature stages of the parasite
Term
Ectoparasite
Definition
a parasite that lives ON the body
Term
Endoparasite
Definition
a parasite that lives within the hose and will produce an infection within that host
Term
Erratic Parasite
Definition
(same as aberrant parasite) a parasite that has wandered from its usual site of infection into an organ or location in which it does not ordinarily live
Term
Euryxenous parasite
Definition
parasite with a very broad host range
Term
Facultative parasites
Definition
organism that is usually free living in nature that develops a parasitic existence in certain hosts
Term
Free-living parasite
Definition
life cycle stage that doesn't require a host to survive
Term
Genus name
Definition
the group of a particular type of animal or parasite or plant which it belongs to
Term
Helminths
Definition
parasitic worms
Term
Homoxenous parasite
Definition
parasite that will only infect one type of host
Term
Host
Definition
in a parasitic relationship, the member in which or on which the parasite lives
Term
Incidental parasite
Definition
a parasite that is found in a host which it doesn't usually live
Term
Infection
Definition
condition caused by an endoparasite within the hosts body
Term
Infestation
Definition
condition caused by an ectoparasite outside or on the hosts body
Term
Insecta
Definition
a class of invertebrates within the arthropod phylum that have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae
Term
Insecticides
Definition
chemical compounds developed to kill insects
Term
Intermediate hosts
Definition
a host that ho=arbors the larval, juvenile immature or asexual stages of the parasite. may have 1 or more immature host
Term
Larviparous
Definition
a type of female nematode that retains her eggs within the utuerus and produces live first stage larvae
Term
Life cycle
Definition
development of a parasite through its various life stages, every parasite has its own distinct individual life cycle with at least one difinitive host and may have one or more intermediate hosts
Term
Linnaean Classification scheme
Definition
classification for all living organisms perfected by Linneaeaus an early swedish biologist.
Every living organism can be classified using the following scheme: kingdom, phylum, class, order, family, genus and species.
Term
Microfilaricide
Definition
dewormer that kills the immature filarial worm
Term
Monoxenous parasite
Definition
a parasite that will only infect one type of host
Term
mutualism
Definition
type of symbiotic relationship in which both organisms in the symbiotic
Term
Nemotode
Definition
roundworm
Term
Obligatory parasite
Definition
parasite that must lead a parasitic existence; most parasites on domestic animals are obligatory parasites
Term
Oviparous
Definition
release an egg with a single cell inside
Term
Ovoviviparous
Definition
Egg with 1st stage larva inside
Term
parasite
Definition
the member that lives on or within the host
Term
Parasitiasis
Definition
a type of parasitic relationship where the parasite is present on or within the host and is potentially pathogenic...however the host does not exhibit clinical signs of disease
Term
parasitosis
Definition
type of parasitic relationship in which the parasite is present on or within the host and causes obvious injury or harm to the host animal- they show outward clinical signs
Term
parasiticides
Definition
chemical compounds (either very simple or very complex) used to treat specific internal and external parasites - includes aanthelmintics, acaricides, insecticides and antiprotozoals
Term
parasitology
Definition
study of parasitic relationships
Term
Paratenic host
Definition
a host used for transport of a parasite. Parasite does not go through any developmental changes
Term
Pathogenicity
Definition
disease causing potential
Term
Periodic parasite
Definition
parasite that makes frequent short visits to its host to obtain nourishment or other benefits
Term
Phoresis
Definition
type of symbiotic relationship in which the smaller member in the relationship is mechanically carried by the larger member
Term
Platyhelminthes
Definition
the group of relatively simple bilaterian, unsegmented, soft-bodied invertebrates.
Term
Pseudoparasite
Definition
an object or organism that resembles or is mistaken for a parasite.
Term
Reservoir host
Definition
an animal or plant that harbors and provides sustenance for another organism (the parasite)
Term
Scientific name
Definition
name for a living organism composed of 2 latin words (written in italics.)
The genus name indicates the group the animal or plant is placed in
Term
Specific epithet
Definition
the type of animal in a genus
Term
Stenoxenous parasite
Definition
parasite with a narrow host range
Term
symbiosis
Definition
any association (whether temporary or permanent) between 2 living organisms of different species
Term
transport host
Definition
A special type of intermediate host in which the parasites does not undergo any development but instead remains arrested or encysted within the hosts tissue.
Also parentenic host
Term
trematode
Definition
Flukes or unsegmented worms
Term
vectors
Definition
A biting insect or tick that transmits a disease or parasite from one animal to another.
Term
zoonosis
Definition
any disease or parasite transmissible from animals to humans.
Term
Acaricides
Definition
Chemical compounds developed to kill mites and ticks
Term
Protozoan parasites
Definition
Single cell organisms that may be flagellates, amoebae, sporozoans, apicomplexans or ciliates.
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