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32 Cards in this Set
- Front
- Back
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Parasitology |
Study of relationships among organisms of different species |
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Symbiosis |
Living together, relationship of parasite and host |
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Mutualism |
Parasite and host benefit |
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Commensalism |
Parasite benefits and host unaffected |
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Parasitism |
Parasite benefits at expense of host |
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Successful parasite |
Parasite establish equilibrium with host |
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Unsuccessful parasite |
Host expels/destroys parasite, or parasite kills host |
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Endoparasite |
Within host tissues/cells |
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Ectoparasite |
On host's surface |
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Facultative parasite |
Can exist as free-living organism or parasite (opportunistic) |
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Obligate parasite |
Requires a host for either part or all of its life cycle (restricted) |
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Accidental parasite |
Parasite accidentally infects a human (true host different animal/species) |
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Zoonosis |
Normal/true host is an animal, accidentally infects human |
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Intermediate host |
Harbors during larval/nonreproductive stage |
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Definitive host |
Harbors during adult/reproductive stage |
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Transport/paratenic host |
Carrier, provides nourishment, not essential for life cycle |
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Reservoir host |
Animal infected with no ill effects, but accidentally spreads infection to humans |
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Vector host |
Insect carrier |
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Mechanical vector |
Accidental or non-essential transmission (vector) |
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Biological vector |
Essential of life cycle of parasite (vector) |
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Helminths |
Worms |
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Nematodes |
Roundworms |
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Cestodes |
Tapeworms |
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Trematodes |
Flatworms/flukes |
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Protozoa |
Single-cell |
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Amoebae |
Pseudopodia |
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Ciliates |
Cilia |
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Flagellates |
Flagella |
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Sporozoa |
No movement |
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Arthropods |
Bugs |
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Insects |
Fleas, lice |
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Arachnids |
Ticks, mites |
