Chapter 1: Introduction to Medical
Parasitology questions and answers
Parasitology✔✔Area of biology concerned with the phenomenon of dependence of
one living organism on another
Medical Parasitology✔✔Concerned primarily with parasites of humans and their
medical significance, as well as their importance in human communities
Topical medicine✔✔Bunch of medicine that deals with tropical disease and other
special medical problems of tropical regions
Tropical disease✔✔You're a mess, which is indigenous to or endemic in a tropical
area but may also occur in sporadic or epidemic proportions in ares that are not
tropical
Symbiosis✔✔relationship of two or more organisms living together
Symbionts✔✔Organisms that are living together
Types of symbiosis✔✔commensalism, mutualism, parasitism
Commensalism✔✔Symbiotic relationship in which to a species live together and one
species benefits from the relationship without harming are benefiting the other
Mutualism✔✔To organisms mutually benefit from each other
Entamoeba coli✔✔Example of parasite that belongs to commensalism
Termites✔✔example of Parasite that belongs to mutualism
parasitism✔✔One organism, the parasite, lives in or on another, depending on the
latter for its survival and usually at the expense of the host
Entamoeba histolytica✔✔Example of parasites that belongs to parasitism
Location/habitat
Mode of development
mode of living✔✔Parasites are classified according to
Endoparasite✔✔parasite living inside the body of the host
infection✔✔presence of endoparasite on a host
infestation✔✔The presence of ectoparasites on a host
, ectoparasite✔✔parasite living outside the body of a host
cytozoic✔✔endoparasite living in cells
Enterozoic✔✔endoparasite living in the lumen of intestines
Hematozoic✔✔endoparasite living in RBCs
Plasmodium spp.✔✔Example of hematozoic parasite
coezolic✔✔endoparasites living in body cavities
Mansonella ozardi✔✔example of coezolic parasite
E. histolytica
A. lumbricoides✔✔examples of endoparasite
lice
ticks
mites✔✔examples of ectoparasite
endoparasite
ectoparasite✔✔parasite according to habitat/location
obligate parasite
facultative parasite✔✔Parasite according to mode of development
Obligate parasite✔✔Needs a host at some stage of their life cycle to complete their
development and to propagate their species
tapeworms
plasmodium spp
ascaris✔✔Examples of obligate parasite
Facultative parasite✔✔May exist in free-living (can survive without a host) state or
may become parasitic when they need arises
Strongyloides stercoralis✔✔example of facultative parasite
accidental/incidental
permanent
temporary/intermittent
periodic
transitory
spurious
erratic✔✔classification of parasite according to mode of living
Parasitology questions and answers
Parasitology✔✔Area of biology concerned with the phenomenon of dependence of
one living organism on another
Medical Parasitology✔✔Concerned primarily with parasites of humans and their
medical significance, as well as their importance in human communities
Topical medicine✔✔Bunch of medicine that deals with tropical disease and other
special medical problems of tropical regions
Tropical disease✔✔You're a mess, which is indigenous to or endemic in a tropical
area but may also occur in sporadic or epidemic proportions in ares that are not
tropical
Symbiosis✔✔relationship of two or more organisms living together
Symbionts✔✔Organisms that are living together
Types of symbiosis✔✔commensalism, mutualism, parasitism
Commensalism✔✔Symbiotic relationship in which to a species live together and one
species benefits from the relationship without harming are benefiting the other
Mutualism✔✔To organisms mutually benefit from each other
Entamoeba coli✔✔Example of parasite that belongs to commensalism
Termites✔✔example of Parasite that belongs to mutualism
parasitism✔✔One organism, the parasite, lives in or on another, depending on the
latter for its survival and usually at the expense of the host
Entamoeba histolytica✔✔Example of parasites that belongs to parasitism
Location/habitat
Mode of development
mode of living✔✔Parasites are classified according to
Endoparasite✔✔parasite living inside the body of the host
infection✔✔presence of endoparasite on a host
infestation✔✔The presence of ectoparasites on a host
, ectoparasite✔✔parasite living outside the body of a host
cytozoic✔✔endoparasite living in cells
Enterozoic✔✔endoparasite living in the lumen of intestines
Hematozoic✔✔endoparasite living in RBCs
Plasmodium spp.✔✔Example of hematozoic parasite
coezolic✔✔endoparasites living in body cavities
Mansonella ozardi✔✔example of coezolic parasite
E. histolytica
A. lumbricoides✔✔examples of endoparasite
lice
ticks
mites✔✔examples of ectoparasite
endoparasite
ectoparasite✔✔parasite according to habitat/location
obligate parasite
facultative parasite✔✔Parasite according to mode of development
Obligate parasite✔✔Needs a host at some stage of their life cycle to complete their
development and to propagate their species
tapeworms
plasmodium spp
ascaris✔✔Examples of obligate parasite
Facultative parasite✔✔May exist in free-living (can survive without a host) state or
may become parasitic when they need arises
Strongyloides stercoralis✔✔example of facultative parasite
accidental/incidental
permanent
temporary/intermittent
periodic
transitory
spurious
erratic✔✔classification of parasite according to mode of living
