FINAL LAB QUIZ 4 platyhelminths
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31 Terms
name the 2 classes in the phylum platyhelminthes?
cestoda, trematoda
name the 4 stages in the platyhelminths life cycle?
egg, larva, cyst, adult
what is the common name of members of the phylum platyhelminths?
flatworms
name the 4 tapeworm genera in the class cestoda?
Taenia
Echinococcus
Diphyllobothrium
Hymenolepis
how do tapeworm adults attach to their host?
the … which have …
the scolex which have hooks
what are the tapeworm segments called?
proglottids
describe the tapeworm egg
… with a … …. …
round with a thick protective shell
which tapeworm is the largest to infect humans?
Diphyllobothrium latum
which tapeworm is the smallest tapeworm to infect humans?
Hymenolepis
name the genus that causes the cow tapeworm infection?
taenia
how do humans acquired the cow tapeworm infection?
eating … or …. …
eating raw or underscooked beef
what is the cow tapeworm cyst called?
cysticercus
what is measly meat?
… that is …. with …
beef that is infected with cysticercus
what genus causes the dog tapeworm infectiopn?
Echinococcus
what is the dog tapeworm cyst called?
hydatid cyst
why is the dog tapeworm cyst easy to recognuize? it conatins … … which are … … … … … inside the …
it contains hydatid sand , which are tiny baby tapeworm heads floating inside the cyst.
name 1 way we can get infected with dog tapeworm
pet kisses
what is the genus that causes the fish tapeworm infection?
Diphyllobothrium
what is the genus that causes the rat tapeworm infection?
Hymenolepis
name an unusual way humans can acquire the rat tapeworm infection?
… … in … that have … …
consume insects in food that have consumed eggs
name the 2 genera in the class trematoda of the phylum platyhelminths
Clonorchis
Schistosoma
what is the common name of the members of the class trematoda?
flukes
which genus is characterized as the liver fluke
Clonorchis
how do humans acquired the liver fluke infection … … or …. fresh… ….
eating raw or undercooked freshwater fish
name the 6 structural specialization in the adult liver fluke?
mouth
oral sucker
ventral sucker
2 digestive tubes
uterus
testes
yolk gland
describe the liver fluke egg
…, …, and a … … at … …
small, oval, and a tiny opening at one end.
which genus is characterized as the blood fluke?
Schistosoma
what unusual adaptation do the adult male and female blood flukes have that ensures reproductive succes?
…. in body … of … remain … …
female in body groove of male
remain attached together
how is the female blood fluke distuinguish from the male blood fluke?
the …is … … and … … the … body groove while the … is … ….
The female is longer, thinner, and lives inside the male's body groove , while the male is shorter, thicker
why is the egg produces by the blood fluke easy to recognize?
it has a lateral spine
what life cycle stage in the blood fluke infects humans?
cercariae