Lab #4 Flashcards

1
Q

Who lacks an external cuticle: roundworms or flatworms

A

Flatworms

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2
Q

What is the function of tegument on parasitic flatworms

A

Secretory and absorptive functions

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3
Q

What fluke is commonly found in liver and bile duct in wild and domestic ruminants

A

F. Hepatica

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4
Q

What do DH of F. Hepatica ingest that causes disease

A

Metacercaria

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5
Q

Identify the following: found in liver and bile ducts of ruminants

A

F. Hepatica

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6
Q

What fluke infests mesenteric veins of dogs

A

Heterobilharzia americana

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7
Q

What is main reservoir host for H. Americana

A

Raccoons

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8
Q

How is H. Americana transmitted

A

Skin penetration

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9
Q

What parasite causes canine shistosomiasis

A

H. Americana

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10
Q

What is the scolex

A

Anchoring structure

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11
Q

What do proglottids contain

A

Sex organs and eggs

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12
Q

What is the most common tapeworm in dogs and cats

A

Dipylidium caninum

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13
Q

What is the intermediate host for D. Caninum

A

Fleas or chewing louse

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14
Q

What is the infective stage for Dipylidium caninum

A

Cysticeroid stage

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15
Q

__irritate Perianal region in dogs or cats with D. Caninum

A

Motile gravid proglottids

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16
Q

The following tapeworms were obtained from dog/cat with flea infection. What is it

A

D. Caninum

17
Q

What species does Taenia Pisiformis infect

A

Dogs

18
Q

How do dogs get T. Pisiformis

A

Eat rabbit or viscera that contains larvae

19
Q

Farm dog presents with Perianal irrational and diarrhea. Owner informs you that dog hunts rabbits. What is parasite

A

T. Pisiformis

20
Q

What species does Echinoccocus Granulosus infect

A

Dogs

21
Q

What type of farms do dogs typically get infected with E. Granulosus

A

Sheep farming

22
Q

E. Granulosus contains what type of cysts

A

Hydatid cyst

23
Q

Most dogs don’t develop disease from E. Granulosus by why do we always treat

A

Zoonotic risk, humans can get uniocular hydatid disease

24
Q

Dog presents for annual exam, fecal shows these. -Owner lives on sheep farm. What parasite caused this and what is red arrow pointing to on right image

A

E. Granulosus
Red arrow: hydatid cysts

25
Q

Who has external cuticle and body cavity: roundworms or flatworms

A

Roundowmr s

26
Q

What dx tools can you use to dx parasitic roundworms

A
  1. Fecal float
  2. Baermann
27
Q

What species does A. Suum infect

A

Swine

28
Q

Pig presents with respiratory distress. Liver and lungs were looked at. Liver has milk spots and lungs are damaged. The following parasite was obtained. What is it

A

A. Suum

29
Q

Where does adult of trichinella infect

A

Mucosa of small intestine

30
Q

Where do larvae of trichinella species infect

A

Skeletal muscle

31
Q

What trichinella spp is most commonly associated with domestic animals

A

T. Spiralis

32
Q

Adult worm on left found in mucosa of small intestine and larvae on right found in skeletal muscle. What is it

A

T. Spiralis

33
Q

What do hookworms feed on

A

Mucosa of SI, blood and tissue

34
Q

What is the main cause of canine hookworm disease

A

Ancylcostoma caninum

35
Q

What is dirofilaria immitis

A

Canine heart worm

36
Q

What is intermediate host for D. Immitis

A

Mosquitoes

37
Q

Following parasite was found in canine blood smear and pulmonary arteries. What is it

A

D. Immitis