strongyloidea Flashcards
strongyloidea taxonomy
kingdom- Animalia phylum-Nematoda -bursate class- secernentea order- strongylida family- strongyloidea
strongyloidea affect who
- horses: small and large strongyles
- Ruminants and primates
- Pigs 9kindyes)
strongyloidea id
- big mouths and bursa
- front end w/ crowns (corona radiata)
strongyloidea organ/ cell effected
cecum and colon
large strongyles taxonomy
kingdom- Animalia phylum-Nematoda-bursate class- secernentea order- strongylida family- strongyloidea subgroup- large strongyles
large strongyles life cycle
- egg -> L1 -> L2-> L3 (infective)
- spend 6 months to 1 year just crawling around before multiplication
large strongyles in resistantce
3rd stage resistant to desiccation and temp extreems
large strongyles infectious when
only larvae infectious not eggs
strongylus vulgaris taxonomy
kingdom- Animalia phylum-Nematoda -bursate class- secernentea order- strongylida family- strongyloidea subgroup- large strongyles
strongylus vulgaris host
horse
strongylus vulgaris lifecycle
Enters wall of cecum & ventral colon & penetrates to submucosa -> Molts to L4-> Penetrates adjacent small arterioles -> Migrates to anterior mesenteric artery -> Finally enters lumen & carried by blood to arteries in intestinal wall -> Enter surrounding tissue & form nodule where they molt into adult -> Enter lumen of cecum & colon
strongylus vulgaris dx
- L4 occludes arteries and causes inflame thrombosis and destroys intestinal wall
- emboli can -> posterior paralysis kidney infection intestinal infarction, impacted intestinal segment
- verminous enteritis
- aneruisms
strongylus vulgaris recovery
lesions heal well and fast once worms are gone
strongylus edentates taxonomy
kingdom- Animalia phylum-Nematoda -bursate class- secernentea order- strongylida family- strongyloidea subgroup- large strongyles
strongylus edentates host
horses
strongylus edentates id
no teeth
storngylus edentates life cycle
- L3 burrow into wall of lg intestine & reach liver via portal veins
- Molt to L4 in liver
- L4 migrates through liver & pancreas
- Leave liver & migrate through peritoneum back to large intestine
- Molt & penetrate intestinal lumen
strongylus edentates dx
- liver damage bc migrations
- possible peritonitis
- large edematous lesions in bowel wall
- lungs
large strongyles includes what
- strongylus edentates
- strongylus vulgaris
small strongyles taxonomy
kingdom- Animalia phylum-Nematoda -bursate class- secernentea order- strongylida family- strongyloidea subgroup- small strongyles
small strongyles include
- sephanurus dentatus
- syngamus trachea (“married together”)
small strongyles host
- horses
small strongyles lifecycle
- non-mingartory in mucosa
- develop nodules in mucosa
- may overwinter in L4 in submucosal nodules
small strongyles organ effected
adults in cecum and colon
small strongyles dx
- often large #s in relatively healthy animals
- emergence large # larvae from bowel wall in late winter/ early spring can -> d+
sephanurus dentatus taxonomy
kingdom- Animalia phylum-Nematoda -bursate class- secernentea order- strongylida family- strongyloidea subgroup- small strongyles
sephanurus dentatus host
- swine
- can have earthworm as paratenic host
sephanurus dentatus lifecycle
- larvae migrate in liver, kidney, peritoenum, muscles for 4-9 months
sephanurus dentatus transmission
- strongylid eggs passed in urine
sephanurus dentatus organ effected
kidney live in peri-renal fat
sephanurus dentatus dx
minimal dx
sephanurus dentates location
SE US
syngamus trachea means what
married together
syngamus trachea taxonomy
kingdom- Animalia phylum-Nematoda -bursate class- secernentea order- strongylida family- strongyloidea subgroup- small strongyles
syngamus trachea host
birds
syngamus trachea affects what organ
trachea
ancilostomatoidea alt name
hookworms
ancilostomatoidea taxonomy
kingdom- Animalia
phylum-Nematoda -bursate
order-strongylida
family- ancilostomatoidea
strongylida includes what
- large strongyles
- small strongyles
- ancilostaomatoidea
- metastrongyloidea
ancilostaomatoidea id
- stood body
- head flexed dorsally (seem like they’re looking backward)
- large out w/ teeth
ancilostaomatoidea organ effected
small intestine
ancylostoma caninum taxonomy
kingdom- Animalia
phylum-Nematoda -bursate
order-strongylida
family- ancilostomatoidea
ancylostoma caninum host
- final: dogs
- paratenic: rats and other rodents (larva arrest)
ancylostoma caninum life cycle
- 3rd stage larvae (infectious) in soil
ancylostoma caninum transmission
Eggs passed in feces
- Larvae penetrate skin then C up and swallow or swallowed directly & go to mucosa of small intestine
- Trans- mammary transmission to pups from arrested larvae
ancylostoma caninum organ effected
- small intestine
ancylostoma caninum dx
- peracute
- acute
- chronic
ancylostoma caninum peracute dx
transmit infected pups, anemia, deteriorate rapidly
ancylostoma caninum acute
older dogs, anemia, tarry tool, many eggs
ancylostoma caninum chornic
no symptoms w/ eggs in feces
ancylostoma caninum location
- warmer climates
ancylostoma caninum humans
- large bowel dx (colitis) in humans w/ single worm present in intestines
ancylastoma tubaeforme taxonomy
kingdom- Animalia
phylum-Nematoda -bursate
order-strongylida
family- ancilostomatoidea
ancylastoma tubaeforme host
- cats final
- mammal paratenic