Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
17 Cards in this Set
- Front
- Back
|
cysticercus
|
bladderworm
vertebrates large vesicle with scolex inside and appears inside out -taenia |
|
|
cystercoid
|
invertibrates
vesicle with scolex not turned inside out -moniezia |
|
|
strobilocercus
|
vertebrates
envaginated scolex connected by strobila to small bladder -taenia taeniaformis |
|
|
coenurus
|
vertebrates
large cyst with a number of scolices which develop on its wall |
|
|
hydatid cyst
|
large cyst with small cysts (brood capsules) each with a number of scolices all found inside
echinoccocus granulosis |
|
|
tetrathyridium
|
elongated larva with a solid body and invaginated scolex
-mesocestoides spp |
|
|
diphyllobothrium latum
|
fish psuedotapeworm
small intestine DH-dogs, cats, bear, fox, carnivores that each fish, man -ciliated coracidium Fish IH -coracidium develops to plerocercoid and is ingested by DH Dx-operculate eggs on fecal sedimentation -hexacanth embryo -praziqantel -common far north and great lakes region |
|
|
dipylidium caninum
|
flea tapeworm of dogs and cats
cucumber seed segments in feces -egg packets in feces with embryonated eggs with oncosphere -small intestine dogs, cats, humans flea IH more pathogenic in fleas--weak, slugglish and die |
|
|
echinococcus
|
5 or less segments
very large cysts severe zoonotic potential only last segment is gravid |
|
|
echinococcus granulosus
|
hydatid cyst
small intestine IH-cattle, sheep, moose, elk, deer and occasionally humans DH-dogs and wild canids -eggs infective immediately when shed in feces -c/s in IH-hydatid cysts - |
|
|
echinococcus multilocularis
|
alveolar hydatid cysts
MOST SERIOUS ZOONOTIC HELMINTH small intestine IH-field mice, deer mice, ground squirrels, cattle, horses, swine, sheep and humans DH-foxes and coyotes usually fox-rodent relationship infected eggs shed in feces oncosphere penetrate liver |
|
|
taenia pisiformis
|
dog-rabbit cycle
can grow up to 2m in length small intestine cysticercus metacestode if severe may see diarrhea, constipation, gas, vomiting and weightloss -gravid segments in stool samples fecal flotation adults in intestine at necropsy |
|
|
taenia taeniaformis
|
most common in cats
IH-mice, rats and rabbits cysticercus metacestode can cause unthrifitness, depression, irritability, poor coat, colic adn mild diarrhea segments around anus, fecal floatation |
|
|
taenia solium
|
pork tapeworm
DH-human, pig, dog cysticercus found in skeletal and cardiac muscle and occasionally nervous system measly pork CS-depend on location of cysticercus in IH-blindness, seizures, CNS problems Praziquantel |
|
|
taenia saginata
|
DI-humans
IH- cattle, buffalo, giraffe and llama -cysticercus in skeletal (esp masticatory) and cardiac muscle of cattle cattle infected by ingesting eggsin human feces |
|
|
moiezia spp
|
cattle and sheep
expansa-sheep benedeni-cattle small intestine IH-orbitad mites (grass mites) cysticercus ingested by mite and develops 6-16 weeks in the mite |
|
|
anoplocephala spp
|
perfoliata-horses
lives in cecum and ileum -ulceration and inflammation, diarrhea orbatid mite IH cysticercoid takes 2-4 months to develop heavy infections-chronic unthriftiness, intermittent colic and diarrhea eggs look like moniezia |
