Nematodes Exam2 Flashcards
Trichuris spp.
host?
site?
buzz words?
whipworm
spp. specific
adults in the cecum/colon
thin anterior, thick posterior; lemon-like egg
Trichuris vulpis
host?
site?
buzz words?
whipworm
dogs
adults cecum/colon
bloody diarrhea
Trichuris suis
host?
site?
buzz words?
whipworm
swine
adults cecum/colon
strong immune rxn; ZOONOTIC
Trichuris ovis
host?
site?
buzz words?
whipworm
sheep/goats
adults cecum/colon
uncommon; young at risk
Capillaria spp.
host?
site?
buzz words?
dogs, cats
airways, intestines, bladder
“put a cap on the bladder” (fluid filled thing); egg looks like Trichuris; asymptomatic; ZOONOTIC
Capillaria obstignata
host?
site?
buzz words?
birds - PIGEONS
alimentary tract
severely path
Trichinella spiralis
host?
site?
buzz words?
swine
infective L1 in striated m.
Cx only HUMANS; squash prep; undercooked pork
Oxyuris equi
host?
site?
buzz words?
pinworms
horses
dorsal colon, anus
gelatinous sub; adhesive tape, perianal scrape; reinfection; broken hair, pruritis
Dirofilaria immitis
host?
site?
buzz words?
heartworm
dogs (+cats +humans?) IH:mosquito
pulmonary artery/ R. ventricle
6-9moPPP; Wolbachia+Doxycycline; Ag test/mod knott’s/concentration; cage rest + owner compliance
A. reconditum
host?
site?
buzz words?
dogs only
adults in subcu, mff in blood
non path; faster mff than Dirofilaria in blood smear (DDx)
Setaria equina
host?
site?
buzz words?
horses, IH: mosquito
mff in blood, adults in peritoneal cavity**
non path
Onchocerca cervicalis
host?
site?
buzz words?
horses, IH: culicoides
mff in tissue spaces, adults in nodules in neck
Spirocerca lupi
host?
site?
buzz words?
esophageal worm
FH:dogs, IH:dung beetle, PH: birds, lizards
L3 nodules in esophagus
paper clip egg; NO scope; osteosarcoma; “Lupin”
Physaloptera
host?
site?
buzz words?
stomach worm
cats and dogs, IH:beetles, roaches, crickets, PH: snakes, birds
mucosal surface of stomach
Draschia megastoma + Habronema
host?
site?
buzz words?
stomach worms
equine, IH: Musca or Stomoxys
adults in stomach/nodules @ margo plicatus
fly carries L3, deposits on wounds/eyes => “SUMMER SORES”
