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Flashcards in Quiz 6 Deck (92):
1

What is the genus name for a Whipworm?

Trichuris

2

What does the anterior vs posterior end of this worm look like?

anterior end is thinner than posterior
whip-like looking

3

What kind of esophagus does trichuris have?

stichosome esophagus

4

Which egg looks lemon or brown and is football shaped, with symmetrical bipolar plugs?

Trichuris

5

Is the trichuris resistant in the environment?

yes

6

Which stage is the Trichuris infective?

L1

7

Where are the adults of Trichuris located in the host

Cecum/colon

8

Which Trichuris spp is in dogs and foxes?

vulpis

9

the symptoms of t. vulpis mimick what?

Addisons Dz-abnormal Na and K values

10

Is vulpis zoonotic?

yes

11

Which spp of trichuris gives pigs catarrhal enteritis?

suis

12

Which spp of trichuris occurs in ruminants?

discolor

13

Which two spp of Trichuris occur in cats?

serrata and campanula

14

Does T. discolor cause major ad frequent infections?

It does cause frequent but no major infections.

15

Dx of Trichuris?

FF, Fecal Ag ELISA

16

How do you control Trichuris? What do you need to remember about the eggs?

Tx soil then replant grass.
Remove host
Eggs are resistant in environment

17

What whipworm has a barrel shape without symmetrical bipolar plugs and is not whip shaped?

Capillaria

18

Which capillaria occurs in dogs cats foxes and coyotes?

Aerophilia

19

Where is c. aerophilia located at in the DH?

trachea, bronchi, nasal cavity, frontal sinus

20

Is C. aerophilia zoonotic?

yes, presents as bronchial carcinoma

21

What color is the C. aerophilia eggs?

Green tinge, and its not as smooth as whipworm

22

What is the life cycle of the C. aerophilia?

L1 ingested-intestines-lungs. Adults in lungs-coughed up-swallowed-removed in feces back as L1. The DH ingests

23

What is the facultative C. aerophilia facultative intermediate host?

Eartworm. L1 ingested by earthworm, DH eats the eartworm that has the L1 in it.

24

What spp is the C aerophilia more pathogenic in?

Foxes-cough, weakness, poor growth, death due to bronchopneumonia

25

Dx of C aerophilia?

Eggs found in sputum, feces or nasal discharge

26

How can you control C aerophilia?

Keep animals away from shaded areas where an earthworm might be

27

Where is Capillaria Pearsonema found in the body? and what is this dz called?

In the bladder

Urinary Capillariasis

28

What are the spp and hosts urinary capillariasis found in?

plica=dog

feliscati=cat

29

What kind of Dx test would you run to see this capillaria plica/feliscati?

Urine sample

30

Life Cycle of Capillaria pearsonema?

Eggs in urine--L1, earthworm ingests, DH ingests earthworm that contains the L1. The egg has to be ingested by the earthworm for it to hatch from egg

31

Where is C. boehmi found in the DH? and what is the DH?

Nasal capillarasis-frontal sinus, nasal, paranasal sinus.

dog and fox

32

What is the Life cycle of c. (eucholeus) boehmi?

UNKNOWN

33

Dx of C. boehmi?

Feces, nasal wash-eggs covered in tiny pits

34

What is different about the way the Trichnella spiralis reproduce?

They are larviporous

female produce larvae NO EGGS

35

Who are the hosts for T. spiralis?

Pigs, HUMANS, rats, mammals

36

Where will you find adult/larvae T. spiralis in the host body?

Adults: Muscosa of SI

Larvae: Encysted in SM of IH

37

What is special and about the DH/IH of T spiralis?

the DH can also be an IH--pgs are cannibals!

38

What is the life cycle of T. spiralis?

DH ingests muscle that has encysted L1 larvae.
L1 liberated by digestive enzymes of DH and travel to SI
M n F mate (male dies after) female produces *prelarvae*
The prelarvae enter lymphatics-systemic
travel to Sk m, develop into L1 and encyst, wait until eaten by another host.

39

How can humans get T. spiralis?

eated raw/poorly cooked pork

40

What are the clinical signs of T. spiralis?

diarrhea, enteritis, fever, stiffness (duh, in sk m), muscle pain, dyspnea, eosinophillia, periorbital and facial swelling. Fatal for humans

nonpath in swine

41

Dx T. spiralis

Serological ONLY

life cycle? larviparous--so no eggs!!! and no life cycle part is in the enivronment

42

What is the scientific name for the giant kidney worm

Dioctophyma renale

43

Who is the direct host for D. renale?

but what else about the hosts?

MINK

but it is not host specific-dog, fox, wolf, cat, pig, horse, cattle.

44

which is large in d. renale, male or female?

cmon!! females!!!

45

How do the eggs of D renale look?

thick, pitted, barrel shapped, yellow-brown, bipolar plugs

46

How is D renale shed?

Urine!!! uuhh renal....urine...

47

Is there a kidney D. renale is most likely to affect?

YES!! Right

48

Life cycle of D renale

INDIRECT.
renale...egg is passed in urine.
ingested by IH (oligochaete annelid)--develops in L3 in IH
IH ingested by DH or PH
L3 travels to Kidney-adult

49

Who is the paratenic host for D renale?

frogs, crayfish and fish

50

Clinical signs of D renale?

destruction of kidney
calification of parenchyma of kidney
uremia if they project in ureter
chronic peritonitis with adhesions
destroy the liver surface

51

What is the TX of D renale?

Nephrectomy, or surgerical removal of worms

52

What parasite has a bulb shaped esophagus, pointed tail and has a direct life cycle?

Oxyuris equi

53

Where are the adults found of O equi in the DH?

Lumen of small colon, maybe large colon

54

What is different about the O equi eggs?

one operulum, unembryonated

55

What is the life cycle of O equi

Direct.
Egg is ingested to SI, hatch, then move to colon.

56

What is special about elimination of O equi

They cement egg masses on the skin of the anus/perianal region. the fluid dries and cracks and flakes to ground and the eggs are ingested, hatch in SI and then move to colon

57

What are the clincial signs of O equi?

Intense pruritus, hair loss on tail, hyperkeratosis

58

DX o equi?

Scotch tape test

59

What is the order name that has facultative parasites?

Rhabditiform Nematodes

60

What is the family were the females are the parasite

Strongyloides

61

The females of strongyloides have what kind of eggs

ovoviviparious

62

Where are the males of strongyloides?

Free-livings

63

What is the name of the parasite of strongyloides were the hosts are primates and canids?

Stercoralis

64

What is the name of the parasite of strongyloides were the hosts are cats (3)

felis, tumefacians, plaiceps

65

What is the name of the parasite of strongyloides were the hosts are ruminants

papillosus

66

What is the name of the parasite of strongyloides were the hosts are equines?

westeri

67

What is the name of the parasite of strongyloides were the hosts are pigs?

ransomi

68

Which strongyloides are zoonotic?

Stercoralis, tumefacians

69

What occurs in humans if they get strongyloides?

Larvae currens

70

What kind of reproduction do the females of stronyloides have?

Parthenogenetic-can develop without a male.

71

How is strongyloides transmitted?

Transmammary in most

Oral in cats

Skin penetration

72

What stage of life is it most common to see a strongyloides infection?

Young

Older are resistant

73

What is internal autoinfection of the human?

L1 can develop in digestive tract to L3 without passing into the environment

74

What external autoinfection?

L3 can start to pass out into feces and then re-infect by perianal penetration of skin

75

What is hyperinfection?

The extreme chronicity of infection and the explosive development of massive disseminated infection that may overwhelm P with depressed cell-mediated immunity

76

How do you Dx Strongyloides?

Baermann Technique-tunnel with bag of fresh poop so the larvae swim out, drown and sink.
You will see the rhabditiform larvae and infective filariform (long esophagus) L3.

77

Thelazia Lacrymalis host?

Horse (eyeworm)

78

Where is T lacrymalis found in the host?

Conjunctival sac and lacrimal ducts, maybe aqueous humor

79

When will you see problems with Thelazia lacrymalis? and what will you see with it?

With heavy infections.

Progessive keratitis, ulceration and increased opacity of cornea which can lead to blindness

80

Diagnosis of thelazia lacrymalis?

Seeing the parasite in the eye. L1

81

What is the life cycle of Thelazia lacrymalis?

Indirect:
Embryonated eggshatch in the uturs of the worm
L1 travels to surface of the eye in horse-
L1 is picked up by a mucoid fly and the larvae develop into the infective L3 in the fly
L3 deposited around the eye of the horse by the fly
Develops into an adult

82

Thezalia californiensis host?

Dog

83

Who is the IH for Thezalia californiensis?

Muscoid Latrine Fly and Fruit Flies

84

Is T. californiensis zoonoitc?

yes

85

Dx and and life cycle of T californiensis?

Same as T. lacrymalis

86

What is the host for Habronema?

Equines

87

Where in the host is the Habronema found?

Stomach

rarely cecum and colon

88

What do the adults of the habronema look like?

Cylindrical buccal capsules

89

What does the egg of the Habronema look like?

Long, thin shelled embryonated.

"hot dog" shaped.

90

Life cycle of Habronema?

Adults produce eggs that hatch in the intestines OR feces
L1 ingested by maggots (larvae) of flies--Musca domestica and stomoxys
L1 to L3 by the time the adult flies emerge from pupa
L3 migrates to mouth of fly and escape when the fly feeds around the mouth lips or wounds of equines

91

How does the Habronema develop while in the DH

Fly is ingested, development of worms in the stomach

Larvae deposited in wounds-CUTANEOUS HABRONEMIASIS

Larvae develop in the eye-Ocular habronemiasis

Larvae enter the blood and travel to lung--Pulmonary Habronemiasis

92

What are summer sores from?

cutaneous habronema. Can cause PROUD FLESH--excess granulation tissue