The Randos Flashcards
Important things about the structure of Acanthocephala
Has a probiscus Non-segmetned body has a body cavity no GI tract separate sexes
known as the giant thorny head worm. why?
Macracanthorhynchus hirudinaceus
protrusible probiscus armed w/ hooks
LC Macracanthorhynchus hirudinaceus
adults attached to SI mucosa.. eggs w/ acanthor larva passed in feces
june/dung beetles ingest eggs
ancanthor hatces, develops, ensyts in body as cystacanth
DH PIg ingests grubs/beetle
Special features of Macracanthorhynchus eggs?
kinda look like a scary vagina;
pitted shell w/ 4 layers
Any important clinical signs?
NO
Diagnosis and treatmetnt Macracanthorhynchus
sedimentation, adults in jejunum at necropsy
Tx- nothing labeled
ivermectin/doramectin
Prevention/control of Macrcanthohyncus
sanitation
plow feilds
plow pasture
confinement rearing
Public health significance of Macracanthohynchus
prevalent in CHina/thailand acute abdominal pain/intestinall perforation
Prevention of Macracanthohynchus
dont eat raw beetles you weirdo
What is Macracanthorhynchus ingens?
NH raccons, wild canids, bears
occasionally dogs
Cool things about Pentastomida
“tongue worms” loon more like worms than arthropods
complex GI system
adults live in respiratory passages of predacious birds/reptiles
Linguata serrata
DH carnivores,
IH herbivores
SW US
rare in upper MW
Anything important about the eggs of Linguata serrate?
COntain fully developed larva when laid
shed in nasal secretions
larva have 2-3 claws when they hatch
What are Nymphs?
miniature adult Linguata serrata w/o reproductive organs
LC Linguata serrata
Adults in nasal passage attache w/ retractable hooks, pdx eggs that are sneezed oiut
IH ingest eggs
larva hatch, penetrate gut wall, develop into Nymphs, molt and encyst
DH eats IH host, excysted nymphs in gut migrate up esophagus to nasal passages
mature to adults
Clinical symptoms og Linguata serrata:
only w/ heavy infection
parasites act as foregin body in nasal passages
irritation causes catarrhal inflammation and rhinitis w/ mucopurulent
Diagnosis/tx Linguata serrata:
DIganosis visual exam of nasal passages detection og eggs nasal exudate might find in feces- floatation
Tx
physical removal of parasite
Gordian/horse hair worms known are in what phylum?
Nematophora
Nematophora LC
larvae parasitic in insects
adutls free living in fresh water, mate lay eggs, in water/moist soil
hatched larvae penetrate insect and mature
emrge when isect in contact w/ H2O
showed video of grasshoper
T/F Horsehair worms will rock oyur world if your infected with them
ITS CALLED THE HORSE HAIR WORM… give me break NO
T/F horsehoar worms are often mistaken for Mermithids- a helminth that is extremely pathogenic to mermaids
The first part is true… the seocnd part depends if you believe or not
