Concurrent #3 Flashcards
What are the 3 groups in helminths?
Nematodes, trematodes, cestodes
What are the 5 major groups?
Trematodes, nematodes, cestodes, ectoparasites
What is trichuris vulpis?
Whipworm
What is defining about trichuris vulpis egg?
Its double plugged
What type of life cycle is trichuris vulpis?
Direct
Draw out trichuris vulpis life cycle
What is heart worm?
Dirofilaria immitis
What is the immature phase of dirofiliaria immitis?
Microfilaria
What is the life cycle of dirofilaria immitis?
Indirect
Draw out the life cycle of dirofilaria immitis
What is flea tapeworm?
Diplidium caninum
What does diplidium caninum shed?
Posterior segments in feces
What do eggs look like from diplidium caninum?
Large sacks of balls
What type of life cycle is diplidium caninum?
Indirect
What is the definitive host?
Where parasite reaches sexual maturity
What is the intermediate host?
A developmental host for the parasite but does not reach sexual maturity
What is the transport host?
Does not develop, just remains alive
What is the aberrant host?
An incorrect host, usually dead end for host
What is the intermediate host for diplidium caninum?
Flea
What is the intermediate host for Dirofilaria immitus?
Mosquito
What is roundworm?
Toxocara canis
What is the transport host for toxocara canis?
Mouse/rat
Draw out the life cycle
What is the pre-patent period?
Time between when a host takes up parasites and offspring are released
What are nematodes?
Roundworms
What are cestodes?
Tapeworms
What are trematodes?
Flukes
What are characteristics of cestodes
Indirect life-cycle
No alimentary canal
Flat body
What are characteristics of nematodes?
Unsegmented
Alimentary canal present
What are characteristics of trematodes?
Leaf-like
What are acari?
Ticks and mites
Is toxocara canis zoonotic
Yes
What type of helminth is toxocara canis?
Nematode
What is infective stage of toxocara canis?
Larvated egg
What type of helminth is ancylostoma caninum?
Nematode
What is infective stage of anyclostoma caninum?
P3
Is anyclostoma caninum zoonotic?
Yes
What is common name for ancylostoma caninum?
Hookworm
What are the hosts for ancylostroma caninum?
Dogs
What is the infective stage of trichuris vulpis?
Embryonated egg