Worms Flashcards
cestodes, flatworms, long skinny
tapeworms
termatodes, flat ovoid body
flukes
nematodes, cylindrical, unsegmented
roundworms
tapeworm:
body
proglottids - egg generating segment
tapeworm:
dwarf
vector - mouth
diarrhea
Hymenolepis nana
tapeworm:
beef
vector - uncooked beef
Taenia saginata
tapeworm: pork vector - uncooked pork cysticerosis larvae containing cysts in liver, eye, brain
Taenia solium
tapeworm: fish vector - mouth, contaminated sushi may cause pernicious anemia (b12 def) yellow fin tuna most common
Diphyllobothrium latum
tapeworm:
dog
vector - canine feces
hydatid cysts in liver and lung
Echinococcus granulosus
flukes:
blood
vector - infested waters, penetrates unbroken skin, host is snail
swimmer’s itch, m/c death by a helminth worldwide
inhabits liver
Shistosoma japonicum
flukes:
intestinal
vector - aquatic plants
contaminated snail feces gets into plants
Fasciolopsis buski
flukes:
liver
vector - raw contaminated fish
Clonorchis sinensis
flukes:
liver
vector - contaminated aquatic plants
hemoptysis
Fasciolopsis hepatica
flukes:
pulmonary
vector - crayfish, mouth
Paragonimus westermani
roundworms: ascariasis vector - oral fecal colicky pain, lives in small intestine m/c round worm
Ascais lumbricoides