Parasitology Week 2

Beschreibung

DVM2 Parasitology Quiz am Parasitology Week 2, erstellt von Kathryn Borg am 09/04/2016.
Kathryn Borg
Quiz von Kathryn Borg, aktualisiert more than 1 year ago
Kathryn Borg
Erstellt von Kathryn Borg vor mehr als 8 Jahre
38
2

Zusammenfassung der Ressource

Frage 1

Frage
Within the sub-order CYCLORRHAPHA what are the relevent families?
Antworten
  • Oestridae
  • Muscidae
  • Hippoboscidae
  • Calliphoridae
  • Simuliidae
  • Psychodidae
  • Haematopinidae

Frage 2

Frage
Which stage(s) within the family Oestridae are parasitic
Antworten
  • A. Larvae
  • B. Adults
  • C. Pupae
  • E. Eggs
  • F. Both A and B
  • G. Both A, B and C

Frage 3

Frage
This text reveals the differences between the three species of horse bot found in Australia, fill in the blanks G. intestinalis eggs [blank_start]yellow[blank_end], anywhere on front of body, Flies active in [blank_start]summer[blank_end] only live for a few days can lay many eggs hatch when [blank_start]licked[blank_end] G. nasalis eggs [blank_start]pale[blank_end], laid [blank_start]between mandibles[blank_end], hatch [blank_start]spontaneously[blank_end] G. haemorrhoidalis eggs [blank_start]black[blank_end], laid [blank_start]around lips[blank_end], hatch spontaneously
Antworten
  • yellow
  • grey
  • summer
  • winter
  • autumn
  • licked
  • a temperature of 28°C is reached
  • pale
  • blue
  • between mandibles
  • between ears
  • between eyes
  • spontaneously
  • black
  • brown
  • around lips
  • around tail
  • under throat

Frage 4

Frage
Where are the parasitic larval stages of Gasterophilus located within the horse?
Antworten
  • First instar : migrates though mouth and gums Second instar : attaches in stomach Third instar : in stomach
  • First instar : migrates though the anus, large intestine and small intestine Second instar : attaches in stomach Third instar : in stomach
  • First instar : migrates though mouth and gums Second instar : attaches in liver Third instar : liver
  • First instar : migrates though mouth and gums Second instar : attaches in oesophagus Third instar : oesophagus

Frage 5

Frage
Identify this species of OESTRIDAE Gastrophilus. Eggs laid between mandibles, eggs are pale, eggs hatch spontaneously. Third instar has spines arranged in 1 row.
Antworten
  • G. nasalis
  • G. intestinalis
  • G. haemorrhoidalis

Frage 6

Frage
How long can the larvae of Gastrophilus remain in the horse?
Antworten
  • 26 months
  • 12 months
  • 24 months

Frage 7

Frage
Identify this species of Oestridae Gasterophilus? Eggs are laid anywhere on the body of the horse, eggs are yellow, eggs require moisture and friction to hatch. Spines in 2 rows, spines slender and blunt tipped, double row reaches 10th or 11th segments dorsally and ventrally. Mouth hooks have a saddle like depression
Antworten
  • G. intestinalis
  • G. nasalis
  • G. haemorrhoidalis

Frage 8

Frage
Identify this species of Oestridae Gasterophilus Eggs black, laid around lips, hatch spontaneously. Spines in 2 rows, pines small; ventral side of segment 3 with 1 medially interrupted row of spins. Mouth hooks uniformly bent
Antworten
  • G. nasalis
  • G. intestinalis
  • G. haemorrhoidalis

Frage 9

Frage
What statements are true of Oestrus ovis
Antworten
  • fly viviparous
  • flies active in summer
  • lays larvae on external nares and larva crawls into nasal cavity
  • all larval stages found in nasal cavity
  • pupae develop in soil
  • third instar sneezed out
  • Larvae is dark yellow with dark transverse bands on dorsal surface of segments
  • Larvae have large black oral hooks
  • Rows of small spines on ventral surface only

Frage 10

Frage
Identify this species of Oestridae. Found in the nasal cavity of sheep. The larvae have large black oral hooks and rows of small spines on the ventral surface only. Larvae are dark yellow in colour
Antworten
  • Oestrus ovis
  • Gasterophilus nasalis
  • Gasterophilus intestinalis
  • Hypoderma ovis

Frage 11

Frage
How does Oestrus ovis effect the sheep?
Antworten
  • Agitates the sheep
  • Chronic nasal discharge
  • Predisposes sheep to pneumonia
  • Destroys the sheeps nasal cavity

Frage 12

Frage
Are any species of Hypoderma present in Australia?
Antworten
  • Yes, Hypoderma bovis and Hypoderma lineatum
  • Yes, Hypoderma bovis
  • Yes, Hypoderma lineatum
  • No species of Hypoderma are present in Australia, it is a quarantine risk

Frage 13

Frage
Identify this species of Oestridae. Large fly (15mm), hairy, no functional mouth parts, hairs on head, anterior thorax is yellow-white. Eggs laid singly high up on legs, hocks and knees, or even on rump. Usually parasitise cattle Larvae penetrate skin and migrate via the epidural fat and encyst on back Larvae pupate on ground, larvae robust and rounded at both ends, rudimentary mouth hooks, small spines present
Antworten
  • Hypoderma bovis
  • Oestrus ovis
  • Gasterophilus nasalis
  • Gasterophilus internalis

Frage 14

Frage
Which of the below species belong to the family Muscidae?
Antworten
  • Musca domestica (housefly)
  • Musca vetustissima (bush fly)
  • Stomoxys calcitrans (stable fly)
  • Haematobia exigua (buffalo fly)
  • Hypoderma bovis (warble fly)
  • Oestrus ovis (gad fly)

Frage 15

Frage
Identify this species of Muscidae. Small grey fly Introduced into Australia from South East Asia Feed on cattle, buffalo, dogs and horses Antennae aristate Mouth parts well developed--> Mouth parts slender, erect and rigid Flies remain on host (die in 1-2 days away from host). Only leave host to lay eggs (breed in cow dung) Host effects--bites are painful, cattle rub to relieve irritation, 2000-3000 flies a heavy infection, loss of condition Control-- fly traps, insecticides
Antworten
  • Oestrus ovis
  • Haematobia exigua
  • Stomoxys calcitrans
  • Hypoderma bovis

Frage 16

Frage
[blank_start]Lucilia cuprina[blank_end] an introduced species and which causes 90% of strikes along with Lucilia sericata also introduced and found mainly in urban areas are both [blank_start]Green[blank_end] species of fly and have [blank_start]1º[blank_end] roles in fly strike Chrysomya rufifacies and Chrysomya varipes are both native species of green fly, both primarily have [blank_start]2º[blank_end] roles in fly strike The [blank_start]Brown[blank_end] species Calliphora stygia and Calliphora augur (both natives) generally have 2º roles in fly strike The native [blank_start]Black[blank_end] species Ophyra spp. has 3º roles in fly strike Calliphora vicina an introduced [blank_start]Blue[blank_end] species that lives in Urban areas has [blank_start]3º[blank_end] roles in fly strike Sarcophaga spp. are native [blank_start]Flesh flies[blank_end] that have 3º roles in fly strike
Antworten
  • Lucilia cuprina
  • Musca domestica
  • Green
  • Grey
  • Brown
  • Black
  • Blue
  • Flesh flies

Frage 17

Frage
Lucililia cuprina is responsible for > 90% of strikes on sheep
Antworten
  • True
  • False

Frage 18

Frage
Which larval stage is able to penetrate the skin of the sheep to begin feeding on flesh?
Antworten
  • First instar
  • Second instar
  • Third instar

Frage 19

Frage
Identify this species of Calliphoridae. -responsible for > 90% of strikes -almost obligate parasite (can breed in carcases but outcompeted) -first instar needs protein meal (cannot penetrate skin) -second instar penetrates skin (feeds on flesh) -pupates under soil -1º role in fly strike -Antennae aristate -Mouthparts well developed -Mouthparts stouter, pendant, fleshy -Thorax without longitudinal stripes dorsally -Abdomen green -Abdominal segments lacking thick dark bands
Antworten
  • Lucilia cuprina
  • Chrysomya rufifacies
  • Calliphora vicina
  • Lucilia sericata

Frage 20

Frage
Identify this species of Calliphoridae -feeds on other maggots -Antennae aristate -Mouthparts well developed -Mouthparts stouter, pendant, fleshy -Thorax without longitudinal stripes dorsally -Abdomen green -Abdominal segments with thick dark bands on anterior margin
Antworten
  • Chrysomya rufifacies
  • Callitroga hominivorax
  • Chrysomya bezziana

Frage 21

Frage
Identify this species of Calliphoridae. -not present in Australia -blue blowfly -Antennae aristate -eggs laid at edges of wounds -larvae are large (up to 14 mm) densely covered with small black spines which bands on segments. -larvae penetrate tissues, liquefying the tissues and extending the wound
Antworten
  • Chrysomya rufifacies
  • Chrysomya bezziana
  • Callitroga hominivorax
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