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
roundworms:
Filiariasis
vector - mosquitoes
elephantitis, lymphatic blockage
Wuchereria bancrofti
roundworms: hookworm vector - fecal contaminated soil wear shoes to prevent m/c hookworms in US
Necator americanus aka Ancylostoma duodenale
roundworms: pinworm (threadworm) vector - anus finger mouth scotch tape or anal cellophane test nocturnal anal itching m/c helminth in US
Enterobius vermicularis
roundworms:
river blindness
vector - flies
in africa
Onchocerca volvulus
roundworms:
river eye worm
vector - flies
aka african eyeworm
Loa Loa
roundworms: trichinosis vector - raw pork lives in striated musc, intercostals, diaphragm diagnose on x-ray/biopsy
Trichonella spiralis
roundworms:
whipworm
vector - oral fecal
weight loss
Trichuris trichura
