Entomology, Helminthology & Protozoology Flashcards by Milagros Andrea Alemania Mateo

Ich is a disease of:
a.Frogs
b.Salt water fishes
c.Wild birds
d.Fresh water fishes

Fresh water fishes

How well did you know this?

Not at all

Perfectly

A good screening laboratory tool for Ehrlichiosis because thrombocytopenia is relatively a consistent finding is:
a.WBC count
b.Platelet count
c.Haematocrit
d.Body temperature

Platelet count

How well did you know this?

Not at all

Perfectly

This worm species has raised cuticular plaques arranged in longitudinal rows on the anterior end.
a.Spirocerca lupi
b.Gnathostoma doloresi
c.Ascarops stronglyina
d.Gongylonema pulchrum

Gongylonema pulchrum

How well did you know this?

Not at all

Perfectly

Who worked on the life cycle of a bird malaria,Plasmodium relictum demonstrating that malariae are transmitted by mosquitoes gaining him the Nobel Prize in Medicine?
a.Alphonse Laveran
b.Theobald Smith
c.Ronald Ross
d.Anton van Leeuwenhoek

Ronald Ross

How well did you know this?

Not at all

Perfectly

All but one is viviparous:
a.Ollulanus tricuspis
b.Probstmayria vivipara
c.Dictyocaulus viviparus
d.Dracunculus medinensis

Dictyocaulus viviparus

How well did you know this?

Not at all

Perfectly

Hyalomma truncatum secretes a toxin while sucking blood, causing a condition known as sweating sickness in:
a.Ruminants
b.Horses
c.Dogs
d.Humans

Ruminants

How well did you know this?

Not at all

Perfectly

Which of the following is a sequence that best describes the stages involved in the sporulation process of Eimeria?
a.Non-sporulated oocysts > sporulated oocysts > sporocysts >sporozoites
b.Sporulated oocysts > sporocysts > sporozoites > non-sporulated oocysts
c.Merozoites > microgamete > macrogamete > sporulated oocysts
d.Gametes > zygotes > oocysts > sporozoites

Non-sporulated oocysts > sporulated oocysts > sporocysts >sporozoites

How well did you know this?

Not at all

Perfectly

Which insect can cause “black fly fever” characterized by headache, nausea, fever, and swollen lymph nodes in the neck, presumably caused by a response to salivary components of the fly?
a. Culicoides spp.
b. Glossina spp.
c. Simulium spp.
d. Haematopota spp

Simulium spp.

How well did you know this?

Not at all

Perfectly

Which of the following is the host of Antarctophthirus microchir?
a.Beaver
b.Polar bear
c.Sea lions
d.Penguin

Sea lions

How well did you know this?

Not at all

Perfectly

Which is not true of Eimeria cyprini?
a.It belongs to the Apicomplexa
b.Sporulated oocyst has a total of 10 sporozoites
c.It is the cause of granular coccidiosis in carps
d.Sporolated oocyst has four sporocysts

Sporulayted oocyst has a total of 10 sporozoites

How well did you know this?

Not at all

Perfectly

This blood fluke particularly affects the hemorrhoidal veins and urinary tract:
a.Schistosoma mansoni
b.Schistosoma bovis
c.Schistosoma hematobium
d.Schistosoma indicum

Schistosoma hematobium

How well did you know this?

Not at all

Perfectly

Which species is not zoonotic?
a.Trichostrongylus axei
b.Dicrocoelium dendriticum
c.Ostertagia ostertagi
d.Dirofilaria immitis

Ostertagia ostertagi

How well did you know this?

Not at all

Perfectly

Most members of this family utilize oribatid mites as intermediate hosts:
a.Anoplocephalidae
b.Dilepididae
c.Davaineidae
d.Hymenolepididae

Anoplocephalidae

How well did you know this?

Not at all

Perfectly

This parasite is an important factor in the development of esophageal sarcoma:
a.Ascarops strongylina
b.Spirocerca lupi
c.Habronema muscae
d.Oxyspirura mansoni

Spirocerca lupi

How well did you know this?

Not at all

Perfectly

Grain itch mite is:
a.Pediculoides ventricosus
b.Fannia scalaris
c.Triacarus diversus
d.Caparinia tripilis

Pediculoides ventricosus

How well did you know this?

Not at all

Perfectly

Anoplocephala perfoliata specifically lodges in the
a.Jejunum
b.Duodenum
c.Ileocecal junction
d.ileum

Ileocecal junction

How well did you know this?

Not at all

Perfectly

If solenocytes are for trematodes, then what structures are for insects?
a.Tracheal tubes
b.Malpighian tubules
c.Ventricular sac
d.Spiracular tubes

Malpighian tubules

How well did you know this?

Not at all

Perfectly

Larva of the following are referred to as bladderworms due to their fluid-filled cyst except:
a.Taenia multiceps
b.Mesocestoides lineatus
c.Echinococcus granulosus
d.Taenia taeniaeformis

Mesocestoides lineatus

How well did you know this?

Not at all

Perfectly

Larva of the following are referred to as bladderworms due to their fluid-filled cyst except:
a.Taenia multiceps
b.Mesocestoides lineatus
c.Echinococcus granulosus
d.Taenia taeniaeformis

Mesocestoides lineatus

How well did you know this?

Not at all

Perfectly

Larva of the following are referred to as bladderworms due to their fluid-filled cyst except:
a.Taenia multiceps
b.Mesocestoides lineatus
c.Echinococcus granulosus
d.Taenia taeniaeformis

Mesocestoides lineatus

How well did you know this?

Not at all

Perfectly

If you plan to infect a cat with Toxoplasma gondii experimentally, what will you not likely do to avoid a missed infection?
a.Feed the naïve cat with purified tachyzoites from the infected rodent.
b.Feed the naïve cat fresh feces containing oocysts from the infected cat.
c.Feed the naïve cat with cysts containing bradyzoites from the infected rodent.
d.Feed the naïve cat with non-fresh feces with sporulated oocysts from the infected cat

Feed the naïve cat fresh feces containing oocysts from the infected cat.

How well did you know this?

Not at all

Perfectly

This condition is caused by Ichthyopthirius multifilis:
a.Blue scale disease
b.Xenomas
c.Red gill disease
d.White-spot disease

White-spot disease

How well did you know this?

Not at all

Perfectly

Fecal examination is not a reliable method of diagnosing infection with this parasite:
a.Trichostrongylus spp.
b.Trichuris vulpis
c.Oxyuris equi
d.None of the above

Oxyuris equi

How well did you know this?

Not at all

Perfectly

These species require two mammals to complete the life cycle:
a.Trichinella spiralis
b.Mesocestoides lineatus
c.Taenia solium
d.Capillaria philippinensis

Capillaria philippinensis

How well did you know this?

Not at all

Perfectly

A single egg may give rise to several larvae infective to the final host in: a.Tapeworms b.Roundworms c.Flukes d.Acanthocephalans

Flukes

Air sac mite: a.Cheyletus eruditus b.Cytodites nudus c.Pyemotes tritici d.Laelaps jettmari

Cytodites nudus

It is an obligate, freshwater fish ectoparasite known as the fish lice. a.Argulus sp. b.Lepeophtheirus sp. c.Caligus sp. d.Euryphorus sp.

Argulus sp.

The cause of “hamburger gill disease” in catfish is: a.Encephalitozoon cuniculi b.Babesia moshkovskii c.Aurantiactinomyxon ictauluri d.Klossiella kobayae

Aurantiactinomyxon ictauluri

This mite causes scaly leg in fowls: a.Sarcoptes scabiei b.Cnemidocoptes mutans c.Trombicula autumnalis d.Dermanyssus gallinae

Cnemidocoptes mutans

The clinical importance of Troglotrema salmincola lies on the fact that it carries a: a.virus b.bacteria c.protozoa d.fungi

Bacteria

The females of this fly most commonly glue their eggs on hairs of the lower regions of the legs and lower body: a. Hypoderma spp. b. Lucilia spp. c. Cochliomyia spp. d. Phormia spp.

Hypoderma spp.

The following are all stomach worms of their respective hosts EXCEPT: a.Hyostrongylus rubidus b.Physocephalus sexalatus c.Ascarops strongylina d.Oesophagustomum dentatum

Oesophagustomum dentatum

The control of kidney worms of pigs can be best achieved by adopting a.regular deworming b.cleaning of pens c.concrete flooring d.gilts only scheme

Gilts only scheme

These flukes occur in the ceca and rectum of birds EXCEPT: a.Notocotylus attenuatus b.Cyclocoelium mutabile c.Catatropis verrucosa d.Postharmostomum gallinum

Cyclocoelium mutabile

The rat lungworm Angiostrongylus cantonensis can cause one of the following conditions in man: a.Eosinophilic meningoencephalitis b.Verminous pneumonia c.Swimmer's itch d.Gid

Eosinophilic meningoencephalitis

The rat-tailed appearance associated with Oxyuris equi is a sequela of the extreme pruritus due to: a.oviposition of females b.vector bites c.allergy induced by feeding worms d.apolysis

oviposition of females

Emerging cercaria of Fasciola from the snails may lodge in the: a.snail b.fish c.vegetation d.leech

vegetation

This helminth genus is characterized by having a parasitic and free-living generations; the former is parthenogenetic with filariform esophagus and the latter with rhabditiform esophagus: a.Strongylus b.Strongyloides c.Trichostrongylus d.Filarioides

Strongyloides

A veterinarian suspects that a trypanosome from cattle is undergoing asexual reproduction upon examination of the Giemsa-stained blood smear. Is the observation correct? a.No, because trypomastigotes are found in enterocytes b.No, because trypanosomes do not infect cattle c.Yes, because trypomastigotes found in the blood can undergo binary fission d.Yes, because epimastigotes found in the blood can undergo binary fission

Yes, because epimastigotes found in the blood can undergo binary fission

Which of the following ectoparasite of swine has been associated with transmission of swine pox virus and Eperythrozoon suis? a. Ornithodoros moubata b. Pulex irritans c. Haematopinus suis d. Sarcoptes scabiei var suis

Haematopinus suis

The snail host of Fasciola gigantica in the Philippines is? a.Brotea aspirata b.Gyraulus tomentosa c.Oncomelania hupensis qudrasii d.Lymnaea auricularia rubiginosa

Lymnaea auricularia rubiginosa

A form of immunity seen in protozoan and some helminth infections that is dependent upon the continued presence of the parasite is: a.Immunological tolerance b.Phagocytosis c.Pinocytosis d.Premunition

Premunition

How much is the blood intake of 20 fleas in one day? a.406 µl b.350 µl c.270 µl d.136 µl

270 µl

“Dollar spots” on the skin are characteristic of infection with: a.Trypanosoma brucei b.Trichomonas vaginalis c.Trichomonas foetus d.Trypanosoma equiperdum

Trypanosoma equiperdum

Among the Trichostrongylidae, this genus is distinguishable from the rest because of the large size of its egg: a.Trichostrongylus b.Ostertagia c.Nematodirus d.Cooperia

Nematodirus

A camel showing clinical symptoms of fever, progressive emaciation and anemia with edema of the dependent parts of the body and suspected to be infected with this organism: a.Cryptosporidium tyzzeri b.Sarcocystis bigemina c.Trypanosoma evansi d.Hepatozoon equi

Trypanosoma evansi

Yellow dog tick: a.Rhipicephalus sangineus b.Boophilus decoloratus c.Haemaphysalis leachi leachi d.Cuterebra emasculator

Haemaphysalis leachi leachi

Considering the life cycles of Besnoitia besnoiti, which method best suits its diagnosis in the definitive host? a.Blood smear b.Buffy coat smear c.Histopathology of the skin d.Fecal flotation using zinc sulfate

Fecal flotation using zinc sulfate

The largest of the human trichomonads is: a.Trichomonas vaginalis b.Trichomonas tenax c.Pentatrichomonas hominis d.Trichomonas phasioni

Trichomonas vaginalis

Important coccidian of golfish: a.Eimeria piriformis b.Eimeria separata c.Eimeria aurata d.Eimeria tenella

Eimeria aurata

What would happen if a Hepatozoon canis-infected ticks feed on a puppy? a.Hepatozoon canis will not cause infection because infected ticks need to be ingested for sporozoites to liberate. b.Hepatozoon canis will not cause infection because ticks are not their invertebrate host. c.Hepatozoon canis will cause infection because bites of infected ticks will transfer the sporozoites to the puppy. d.Hepatozoon canis will cause infection because bites of ticks will transfer the gametocytes to the puppy.

Hepatozoon canis will not cause infection because infected ticks need to be ingested for sporozoites to liberate.

Concerning RBCs infected with Theleiria equi, which of the following distinct structures or formations can be seen in a blood smear and may aid in the diagnostic process? a.Maltese cross b.Ring formed merozoite c.Banana shaped gametocyte d.Spindle shaped gametocyte

Maltese cross

The phenomenon that allows the increased fecundity of worms: a.Self-cure phenomenon b.Hypobiosis c.Periparturient rise in Fecal Egg Count d.Paedogenesis

Periparturient rise in Fecal Egg Count

What is your suspected cause of infection when a herd of cattle has a history of early abortion, cows returning to service and failure of animals to become pregnant except after repeated service. Evidence of vaginal discharge and pyometra in herd: a.Brucella abortus b.Cryptosporidium bovis c.Giardia bovis d.Trichomonas foetus

Trichomonas foetus

Which invertebrate serve as intermediate host of the thorny-headed worm of pigs: a.Dung beetles b.Red ants c.Earthworms d.Oribatid mites

Dung beetles

The main cause of creeping eruption is man is: a.Ancylostoma ceylanicum b.Ancylostoma braziliense c.Necator americanus d.Ancylostoma duodenale

Ancylostoma braziliense

Transplacental or prenatal transmission occurs in the following EXCEPT: a.Stephanurus dentatus b.Strongyloides ransomi c.Protostrongylus rufescens d.Strongyloides westeri

Strongyloides westeri

Lesions occur mainly in the anterior half of the intestine in the following species of chicken coccidia EXCEPT: a.Eimeria brunetti b.Eimeria hagani c.Eimeria praecox d.Eimeria acervulina

Eimeria brunetti

Hippobosca equina attacks: a.Equines only b.Cattle & equines c.Cattle only d.None of the above

Cattle & equines

Also known as the Philippine foot maggot fly: a.Callitroga hominivorax b.Booponus intonsus c.Sarcophaga canaria d.Auchmeromyia luteola

Booponus intonsus

The following are sucking lice of their respective hosts EXCEPT: a.Haematopinus tuberculatus b.Linognathus setosus c.Trichodectes canis d.Pediculus humanus

Trichodectes canis

In trombiculids or chigger mites, the stage that is important to domestic animals is the: a.Adult b.Egg c.Nymph d.Larva

Larva

In trombiculids or chigger mites, the stage that is important to domestic animals is the: a.Adult b.Egg c.Nymph d.Larva

Larva

In trombiculids or chigger mites, the stage that is important to domestic animals is the: a.Adult b.Egg c.Nymph d.Larva

Larva

A veterinarian diagnose trypanosomiasis in a buffalo based on early trophozoite stages inside the erythrocytes upon examination of the Giemsa-stained blood smear. Is the observation correct? a.No, it is likely caused by an apicomplexan parasite b.No. it is likely caused by a coccidian parasite c.Yes, buffalo can be infected with Trypanosoma evansi d.Yes, trypanosomes are intra-erythrocytic parasites

No, it is likely caused by an apicomplexan parasite

Which of the following myxosporidian causes whirling disease or “black tail” in salmonids? a.Nosema connori b.Myxosoma cerebralis c.Ceratomyxa shasta d.Chilodonella cyprini

Myxosoma cerebralis

Which chicken louse is typically found in the breast, vent, and thighs? a. Menopon gallinae b. Lipeurus caponis c. Cuclotogaster heterographus d. Menacanthus stramineus

Menacanthus stramineus

Considering the life cycle of Histomonas meleagridis, which method best fits its diagnosis when presented with a cecal sample? a.Examining the tissue for sporulated oocysts. b.Examining the tissue for the parasite’s flagellated form. c.Examining the tissue for the parasite’s transitional amoeboid form. d.Examining the tissue for the parasite’s non-flagellated tissue form.

Examining the tissue for the parasite’s flagellated form.

This mite affecting chickens is nocturnal, and heavy infestation may lead to skin irritation, anemia, loss of vigor, stunted growth, and reduced egg production. The mites can be found in the housing during the day, including the nest, litter and crevices: a. Ornithonyssus bursa b. Laminosioptes cysticola c. Neocnemidocoptes gallinae d. Dermanyssus gallinae

Dermanyssus gallinae

Eggs of Schistosoma japonicum can be demonstrated in the feces because: a.Adult worms may move to the intestine b.Adult worms mature in the intestine c.Eggs are carried to the intestine thru the mesenteric vessels d.Eggs are carried to the intestine thru the portal vessels

Eggs are carried to the intestine thru the mesenteric vessels

Cryptobia cyprini is a: a.Coccidia b.Ciliate c.Flagellate d.Amoeba

Flagellate

This microsporidian protozoon is the cause of the “neon tetra disease” of aquarium fishes. a.Pleistophora cepedianae b.Myxosoma cerebralis c.Pleistophora hyphessobryconis d.None of the above

Pleistophora hyphessobryconis

Papulocrustous lesions in the lower back, tail head, and posterior and inner thighs may indicate: a.Demodecosis b.Sarcoptic mange c.Flea allergy dermatitis d.Pediculosis

Flea allergy dermatitis

Which helminth infection in cats can produce spontaneous pulmonary arteriopathy with pulmonary arterial hypertrophy and hyperplasia? a.Ollulanus tricuspis b.Filaroides hirthi c.Platynosomum fastomum d.Aelurostrongylus abstrussus

Aelurostrongylus abstrussus

Which of the following parasite species multiply asexually by schizogony? a.Plasmodium knowlesi b.Plasmodium bubalis c.Plasmodium gallinaceum d.All of the above

All of the above

Cecal worm of chicken promotes the transmission of this protozoa in turkeys: a.Entamoeba coli b.Chilomastix mesnilii c.Hexamita meleagridis d.Histomonas meleagridis

Histomonas meleagridis

The following require freeliving oligochaete annelids as intermediate host EXCEPT: a.Hystrichis tricolor b.Dioctophyme renale c.Eustrongylides Papillosus d.Filicolis anatis

Filicolis anatis

This mite can be distinguished from others by the presence of three-jointed pretarsi or pedicel: a. Sarcoptes sp. b. Psoroptes sp. c. Chorioptes sp. d. Otodectes sp

Psoroptes sp.

Which is not true for Ichthyopthirius multifilis? (A). Infective stage are tomites: a.Infective stage are tomites b.Macronucleus is horseshoe-shaped c.Life cycle is temperature dependent d.Occurs in the liver

Occurs in the liver

A veterinarian wants to culture Leishmania isolated from clinical cases. What would be the best method? a.Use a MacConkey agar medium. b.Use a Nicolle–Novy–MacNeal (NNN) medium c.Use a Lysogeny Broth (LB) broth d.It’s not possible to culture trypanosomes in vitro

Use a Nicolle–Novy–MacNeal (NNN) medium

Oviduct fluke of poultry is primarily transmitted through: a.ingestion of infected dragonfly naiads b.bites from dragonflies c.ingestion of infected frogs d.ingestion of infected snails

ingestion of infected dragonfly naiads

Which of the following ectoparasiticides acts as chitin synthesis inhibitor? a. Imidacloprid b. Lufenuron c. Milbemycin oxime d. Pyrethrin

Lufenuron

In Elaeophora poeli those that are fully enclosed inside the nodules are: a.Both male and females b.Male only c.Female only d.None of the above

Male only

Autoinfection is a characteristic feature of these parasites EXCEPT: a.Hymenolepis (Vampirolepis) nana b.Capillaria philippinensis c.Hymenolepis diminuta d.Strongyloides stercoralis

Hymenolepis diminuta

The infective stage of thorny-headed worm to its final host: a.Acanthella b.acanthor c.cystacanth d.cantharin

cystacanth

Males of the following nematodes have only one spicule EXCEPT: a.Dioctophyme renale b.Trichuris vulpis c.Trichinella spiralis d.Oxyuris equi

Trichinella spiralis

The females of this Gasterophilus spp. deposit their eggs in the lips of horses, and the larvae eventually penetrate the mucosa and reach the stomach or rectum: a. Gasterophilus nasalis b. G. hemorrhoidalis c. G. intestinalis d. G. pecorum

Gastrerophilus hemorrhoidalis

Which of the following has the longest life cycle? a.Strongylus vulgaris b.Strongylus equinus c.Dirofilaria immitis d.Stephanurus dentatus

Stephanurus dentatus

The arthropod vector of Hepatozoon muris is: a.Laelaps nuttali b.Ornbithonyssus bursa c.Echinolaelaps echidninus d.Lyponyssus sp.

Echinolaelaps echidninus

Sparganosis in humans may be acquired by the following means except: a.drinking water with procercoid b.eating raw or unthoroughly cooked meat with plerocercoid c.applying snake or frog flesh on wounds infected with plerocercoid d.accidental ingestion of Cyclops crustaceans infected with plerocercoid

accidental ingestion of Cyclops crustaceans infected with plerocercoid

The cause of amoebiasis in reptiles is: a.Entamoeba hartmanii b.Iodamoeba butschlii c.Entamoeba invadens d.Endolimax nana

Entamoeba invadens

The following arthropods are intermediate host of Dipylidium caninum EXCEPT: a.Trichodectes canis b.Ctenocephalides felis c.Sarcoptes scabiei d.Heterodoxus longitarsus

Sarcoptes scabiei

This is also known as cucumber tapeworm of dogs: a.Taenia taeniaeformis b.Dipylidium caninum c.Diphyllobothrium latum d.Taenia serialis

Dipylidium caninum

The host’s cell nucleus is displaced or sometimes expelled by the gametocytes in infection with the following blood protozoa EXCEPT: a.Plasmodium cathemerium b.Haemoproteus sacharovi c.Plasmodium vaughani d.Plasmodium relictum

Plasmodium vaughani

This is considered the most pathogenic ectoparasite of snakes due to its role in the transmission of Aeromonas hydrophila that causes hemorrhagic septicemia: a.Laelaps echidninus b.Ophionyssus natricis c.Aponomma varanense d.Varroa destructor

Ophionyssus natricis

Anaplasma organisms using Romanowsky will stain: a.Red to dark red b.blue c.Violet to dark violet d.Cobalt blue

Red to dark red

Hepatozoon canis is transmitted to the definitive host: a.Through ingestion by the definitive host of the intermediate host b.Through bite of the intermediate host c.Through ingestion of the feces of the intermediate host d.None of the above

Through ingestion by the definitive host of the intermediate host

In cats, miliary dermatitis and many small papules associated with pruritus is indicative of: a.Demodecosis b.Otodectosis c.Flea hypersensitivity d.Mite sensitivity

Flea hypersensitivity

The migratory phase of this worm species leads to colic in horses: a.Strongylus vulgaris b.Strongylus equinus c.Parascaris equorum d.Habronema majus

Strongylus vulgaris

Which of the following statements on cat flea life cycle is INCORRECT? a. Eggs are deposited on the bedding, carpet or soil, where they eventually hatch. b. Larvae feed on organic matter and debris, including blood-rich fecal pellets voided by adult fleas. c. Flea cocoons can be found in soil, under vegetation, in carpets, under furniture, and on animal bedding. d. Adult fleas that have found a suitable host remain in their host unless forced off by grooming or insecticide treatment.

Eggs are deposited on the bedding, carpet or soil, where they eventually hatch.

These nematodes occur in the aorta of their respective hosts EXCEPT: a.Onchocerca armillata b.Elaeophora poeli c.Spirocerca lupi d.Onchocerca gutturosa

Onchocerca gutturosa

Dioctophyma renale is to the kidneys of dogs and related carnivores, Stephanurus dentatus to the perirenal fat sometimes in the renal pelvis of pigs, and Capillaria plica to the urinary bladder sometimes in the renal pelvis of: a.Rabbits b.Monkeys c.Bovines d.Dogs, cats and foxes

Dogs, cats and foxes

Brainscape's Knowledge GenomeTM

Entomology, Helminthology & Protozoology Flashcards

Brainscape's Knowledge Genome^TM