Helminths Flashcards
What are the two categories of Helminths?
tapeworm and roundworms
_ are thin, soft body that is flattened dorsoventrally
tapeworm
_ are cylindrical shaped body, tapered at the end, unsegmented
roundworm
_; flukes (such as liver, blood and lung flukes), all are parasitic
Trematoda (tapeworm)
_; tapeworms (beef, pork and fish tapeworms), all are parasitic
cestoidea
_, can be found in the intestine (i.e pinworm) OR blood and tissue (i.e. filarial worms and dog worm)
roundworm
Adult tapeworms live in the small intestine of humans by attaching to the intestinal wall by the _ which consists of hooks and up to _ suckers
scolex ; 4
How long can a tapeworm live in the intestine?
up to 25 years
What are some symptoms associated with a tapeworm?
diarrhea, increased appetite, intestinal obstruction
Tapeworms are detected by _ or _ in the feces
ova ; proglottids
If ova is present on hands, fomites or linens what type of Helminths might this be?
roundworm
What is a common symptom of roundworm?
nocturnal itching at the anus
T/F: worms are visible in the stool if a person has ringworm
True
Life-cycles are highly complex; can include a _ host (sexual cycle takes place), and _ host (asexual cycle takes place) and a _ host (no change in stage or development)
definitive ; intermediate ; paratenic