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Parasitology > Lec 15: Ectoparasite > Flashcards

Lec 15: Ectoparasite Flashcards

1
Q

Most hard ticks submitted to the laboratory belong to the genera ___.

A

Amblyomma
Dermacentor
Ixodes
Rhipicephalus

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2
Q

Amblyomma spp CN

A
  • Lone star
  • Gulf Coast Tick
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3
Q

Medical importance of Amblyomma spp.

A

Amblyomma americanum
• tularemia
• granulocytic ehrlichiosis
• monocytic ehrlichiosis

Amblyomma maculatum
• tidewater spotted fever

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4
Q

Dermacentor spp. CN

A

American dog ticks

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5
Q

Medical importance of Dermacentor spp.

A

Dermacentor variabilis
• Rocky mountain spotted fever
• tularemia

Dermacentor andersoni
• Rocky mountain spotted fever
• tularemia
• Colorado fever virus

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6
Q

Ixodes spp CN

A

Black-legged deer ticks

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7
Q

Medical importance of Ixodes spp.

A

Ixodes scapularis & Ixodes pacificus
• Lyme borreliosis
• babesiosis

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8
Q

Brown Dog Tick is the CN of what hard tick?

A

Rhipicephalus sanguineus

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9
Q

Medical importance of Rhipicephalus sanguineus

A

Rocky mountain fever

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10
Q
  1. CN of Sarcoptes scabiei
  2. Medical importance
A
  1. Human itch mite
  2. Scabies
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11
Q
  1. CN of Demodex spp.
  2. Medical importance
A
  1. Follicle mite
  2. Inhabits sebaceous glands & hair follicles (mostly scalp follicles)
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12
Q
  1. Dust mite is the CN of ___.
  2. Medical importance
A
  1. Dermatophagoides spp.
  2. Allergies, asthma
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13
Q

How to distinguish Ticks from mites?

A

Ticks are/have:
• larger
• Haller’s organ (chemosensation)
• Toothed hypostome

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14
Q

The species of Lice that parasitize humans

A
  • Pediculus humanus
  • Pthirus pubis
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15
Q

The difference of Pthirus pubis from Pediculus humanus

A

Pthirus pubis
• wider
• has abdominal protuberance

Pediculus humanus
• longer

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16
Q

Medical importance of Pediculus humanus

A

Anemia (heavy infestation)

17
Q

Medical importance of Pthirus pubis

A
  • NOT a vector of disease
  • High contagious
18
Q

Two main Bed Bug spp that feed on humans

A
  • Cimex lectularius
  • Cimex hemipterus
19
Q
  1. CN of Ctenocephalides spp.
  2. Intermediate host
A
  1. Cat & Dog flea
  2. Hymenolepis spp.
20
Q
  1. CN of Xenopsylla cheopis
  2. Medical importance
A
  1. Oriental Rat Flea
  2. Medical importance
    • Black plague (Yersinia pestis)
    • Hymenolepis spp. carrier
21
Q
  1. CN of Pulex irritans
  2. Medical importance
A
  1. Human Flea
  2. Dipylidium caninum & Hymenolepis spp. carriers
22
Q
  1. Species under Tunga
  2. CN of Tunga spp.
  3. Medical importance
A
  1. a. Tunga penetrans
    b. Tunga trimamillata
  2. Chigoe fleas
  3. Tungiasis
23
Q
  1. CN of Dermatobia hominis
  2. Clinical presentation
A
  1. Human Bot Fly
  2. Furuncular myiasis
24
Q
  1. CN of Cochliomyia hominivorax
  2. Clinical presentation
A
  1. Primary screwworm fly
  2. Obligatory wound myiasis
25
Q
  1. CN of Cordylobia anthropophaga
  2. Clinical presentation
A
  1. skin maggot fly
  2. Obligatory furuncular myiasis
26
Q
  1. CN of Lucilla (Phaenicia) spp.
  2. Clinical presentation
A
  1. Blow fly
  2. Facultative wound myiasis, aural myiasis
27
Q
  1. CN of Sarcophaga spp.
  2. Clinical presentation
A
  1. Flesh fly
  2. Aural myiasis, facultative wound myiasis
28
Q
  1. CN of Gasterophilus spp.
  2. Clinical presentation
A
  1. Horse stomach bot fly
  2. Migratory furuncular myiasis
29
Q
  1. CN of Oestrus ovis
  2. Clinical presentation
A
  1. Sheep Nasal bot fly
  2. Opthalmomyiasis
30
Q
  1. CN of Cuterebra spp.
  2. Clinical presentation
A
  1. Roden and Lagomorph bot fly
  2. Furuncular myiasis
31
Q

Pseudoparasite: PSYCHODIDAE

  1. Species
  2. CN
  3. Location
  4. Feeding
A
  1. Psychoda cinerea
  2. a. Moth fly
    b. Drain fly
  3. Water & organic sludge
  4. Organic film, bacteria, fungi, algae
32
Q

Pseudoparasite: SYRPHIDAE

  1. Species
  2. CN
  3. Feeding
A
  1. Eristalis tenax
  2. a. Rat-tailed maggot
    b. Drone fly
  3. Decaying organic matter
33
Q

Pseudoparasite: STRATIOMYIDAE

  1. Species
  2. CN
A
  1. Hermetia illucens
  2. Soldier fly

Parasitology (5 decks)

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