Term
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Definition
| kinteplastid protozoa with falgellum |
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Term
| what do trypanosomes cause? |
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Definition
| african sleeping sickness, chagas, leishmaniasis |
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Term
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Definition
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Term
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Definition
| flagellum at anterior of nucleus, free from body |
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Term
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Definition
| flagellum anterior of nucleus, connected by membrane |
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Term
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Definition
| posterior of nucleus, passing through a long groove |
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Term
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Definition
| posterior of nucleus, connected by a long undulating membrane |
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Term
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Definition
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Term
| african sleeping sickness vector |
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Definition
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Term
| trypanosome that causes african sleeping sickness life cycle |
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Definition
1. taken from host in blood, transform and develop in midgut of tsetse
2.move to proventriculus, transform to epimastigotes
3. infect salivary glands, become metacyclic trypomastigotes
4. delivered in saliva to host and become long slender trypomastigotes |
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Term
| african sleeping sickness infection symtoms |
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Definition
local ulcerating chancre, infects lymph glands and bloodstream
recurrent attacks of fever, loss of weight
disturbed day-night rythm
non-treated fatal |
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Term
| how often does trypanosome divide in african sleeping sickness |
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Definition
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Term
| two forms of african tryanosomiasis |
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Definition
t.b gambiense
t.b. rhodesiense |
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Term
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Definition
milder chronic disease (african sleeping)
"western fly belt"
where human, water and forest coincide
antelope, domestic pig, sheep |
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Term
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Definition
acute form
enzootic cycle among game
subject to endemic out breaks |
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Term
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Definition
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Term
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Definition
similar to house fly
adults suck blood
larviparous |
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Term
| tsetse orientation to host |
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Definition
perch on branches and wait
will not enter houses |
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Term
| what group transmits tb rhodensiense |
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Definition
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Term
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Definition
savanna and thicket species
feed on large suids and bovids and buchback, NOT HUMANS |
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Term
| what group transmits t.b. ganbiense? |
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Definition
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Term
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Definition
riverside or lake shore
feed on human, crocodiles and bushback |
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Term
| chagas disease parasite and vector |
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Definition
trypanosoma cruzi
kissing bug |
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Term
|
Definition
acquire trypanosomes in blood meal from host animal
trypanosomes multiply and develop in mid gut and hund gut of bug
convert to amastigotes then several other forms locally in gut
ultimately become epimastigotes |
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Term
| how is trypanosome transmitted to humans to cause chagas disease? |
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Definition
liquid feces of tsetse infective on skin
infection by rubbing feces into bite or eye |
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Term
| blood form of trypanosome |
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Definition
trypomastigote-elongate, pointed at both ends, flagellum
early in infection |
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Term
| intracellular form of trypanosome |
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Definition
amastigote, rounded no flagellum
later in infection
cardiac and smooth muscles |
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Term
| kissing bug family and genus |
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Definition
reduviidae
traitoma, rhodinous, etc |
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Term
|
Definition
elongate, narrow, cylindrical head
piercing, sucking mouth parts
dark colored
abdomen
hemielytra 3 major veins |
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Term
|
Definition
dependent on order
live near nest
reach and infest new nests by flight |
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Term
| trypanosomes relationship with host |
|
Definition
wide range
peridomestic with humans
associated with forest animals |
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Term
| leishmania vector and parasite |
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Definition
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Term
|
Definition
l.donovani
l.tropica
l.chagasi
l.brasilensis |
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Term
| life history of leishmania trypanosomes |
|
Definition
taken up by fly
covert to promastigote
pharynx
skin
covert to amastigote
reside in phagocytic system
convert to mobile promastigotes |
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Term
| behavior of leishmania in vertebrates |
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Definition
invade cells progressively destroy tissue
causes you to attack your own skin |
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Term
| vertebrate hosts of leishmania |
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Definition
old world-rodents
new world-numerous |
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Term
| sandfly genera (new and old world) |
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Definition
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Term
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Definition
| small, tan, stilt like legs, long pointed wings, poor flier, nocturnal feeder |
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Term
| where do larva and adults of leishmania reside in rain forests? |
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Definition
adults on tree trunks
larval habitat unknown |
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Term
| where do larva and adults leishmania live in desert? |
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Definition
adult-rodent burrow, rock piles, ruins, caves
larva-rodent toilet chamber, barns |
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Term
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Definition
females take blood and CHO
nocturnal
slashing and cutting mouthparts
feed from capillary fed pool |
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Term
| apicomplexa was originally |
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Definition
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Term
| are apicomplexa an obligate intracellular parasite? |
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Definition
| yes, during some part of life history |
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Term
| what is unique about apicomplexa |
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Definition
| apical complex and secretory structures |
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Term
| what is apicomlexa closely related to |
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Definition
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Term
| major groups of apicomplexa |
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Definition
gregarina
coccidia
haemosporida
piroplasmida |
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Term
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Definition
sexual and asexual reproduction
always begins with infective sporozoite entering host cell |
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Term
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Definition
sporozoite massivey grows (trophpzoite)
undergos multiple division, schizont (meroziotes)
cytoplasm cleaves around nuclei
merozoites infect other cells |
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Term
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Definition
merozoites tranform into gamonts
gamonts form cyst (gamontocyst)
gamonts divide to form gametes
gametes fuse to form zygote |
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Term
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Definition
| zygote gives rise to many spores and eventually sporozoites |
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Term
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Definition
feces of host
predator eats infected prey
mosquitoes |
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Term
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Definition
marine worms and insect body cavities
sporogony
development outside of cell |
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Term
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Definition
sporozoite eaten by host
epithelial cells
trophozoite
gut epithilium
cells subdivide
trophozoites from pairs called syzgys
gamete formation
zygote
creates spores |
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Term
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Definition
tissue level parasitism
advanced
merogony |
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Term
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Definition
gamete fuse to form zygote
oocyst
spores
sporozoites |
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Term
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Definition
true coccidia
intracellular parasite |
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Term
|
Definition
trophozoites
schizonts
merozoites
infect other cells
trophozoites go to gamonts instead of schizonts
gametes
oocyst
sporogony, spores |
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Term
| eucoccidia can do what in advanced forms? |
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Definition
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