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Parasitology 2 > 2.5. Diro, Spiro, Oxyuris, Etc > Flashcards

2.5. Diro, Spiro, Oxyuris, Etc Flashcards

1
Q
A

Oxyuris equi - pinworm of horses
Tail is much narrower than the body

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2
Q

Predilection site of Oxyuris equi

A

Caecum, colon, rectum

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3
Q

What do pinworm feed on?

A

Content of the large intestines, not the body fluids —> they have pinworm esophagus

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4
Q
A

Oxyuris equie* because they have only ONE spiculum

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5
Q
A

Oxyuris equi eggs

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6
Q
A

That’s where Oxyuris equi eggs are located -> itching !!! main symptom -> reinfection

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7
Q
A

Oxyuris equi

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8
Q
A

Oxyuris equi eggs

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9
Q
A

Oxyuris equi

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10
Q

What animal species can Thelazia infect?

A

Cattle, horses, carnivores

  • cattle: Thelazia rhodesi, gulosa, skrjabini
  • horses: Thelazia lacrymalis
  • carnivores (dog, cat): Thelazia callipaeda, californiens
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11
Q
A

Thelazia

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12
Q

Life cycle of Thelazia

A
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13
Q
A

Thelazia
In the first third of the body cuticular id ringed

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14
Q
A

Setaria — worm of horses, living under peritoneum

Microfilaria!

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15
Q

Life cycle of Spirocerca

A

Dog eats L3 —>
L3 will travel to aorta and bury itself in the wall of the aorta (nodules!) —>
there it’ll moult to L4 —>
L4 migrates to esophagus where it also buries itself into the wall of esophagus (nodules) —>
adults

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16
Q
A

Nodule of Spirocerca lupi

17
Q
A

Eggs of Spirocerca lupi

18
Q
A

Spirocerca

19
Q
A

Dirofilaria immitis

20
Q
A

Dirofilaria immitis

21
Q
A

Dirofilaria repens

22
Q
A

Microfilaria ?

23
Q
A

Onchocerca - live in connective tissue
Microfilaria in lymph nodes
- horse: Onchocerca cervicalis, reticulata
- bovines: Onchocerca reticulata, gutturosa
- dog: Onchocerca lupi

24
Q
A

Onchocerca - whole body is covered with rings

Parasitology 2 (8 decks)

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