Parasitology Final exam questions and answers fully solved
A route of infection of hookworms that is not shared by roundworms is - Answersskin
penetration
Name the one trichostrongyle whose egg can be easily distinguished from the other
trichostrongyle-type eggs. - AnswersNematodirus spp
Occult heartworm infections occur in approximately 90% of: - Answerscats
Which of the following roundworms are not potentially infectious to humans: -
AnswersParascaris equorum
Trichuris vulpis is transmitted in which way: - AnswersIngestion of infective eggs
What is the intermediate host for Thelazia? - AnswersMusca autumnalis
The intermediate host for Dirofilaria immitis is the: - Answersmosquito
Which of the following worms is found by utilizing the Baermann technique rather than a fecal
flotation: - AnswersDictyocaulus viviparus
What is the infective stage of most nematodes: - AnswersL3
Children get pinworms from - Answerschildren
T/F
Whipworm eggs are shed intermittently - AnswersTRUE
In puppies, transplacental transmission is the primary route of infection for: - AnswersToxocara
Prepatent period is - Answersthe time from entrance of the parasite into the definitive host to
the time of larvae and egg production
Name the major lungworm of importance in the cattle industry (scientific name). -
AnswersDictyocaulus viviparus
Oxyuris equi does require an arthropod host
T/F - AnswersFalse
Which organ is most commonly affected in cats that develop disease due to infection with
Dirofilaria immitis : - Answerslung
, The parasite found in the abomasal gastric glands of ruminants is: - Answersostertagia spp
Name the three routes of transmission that are possible for Toxocara canis. - AnswersFecal oral,
transplacental, transmammary
How long can serology tests detect heartworms in a dog's blood? - AnswersSeveral months
which dewormer is not effective against ascarids - AnswersDroncit (praziquantel)
It is August and three of your sheep have died suddenly. Other sheep in the flock have pale
gums and one also has edema under her chin. You perform a fecal exam and find typical
trichostrongyle type eggs. Which of the following worms is the most likely culprit: -
AnswersHaemonchus contortus
Adult ascarids are very large and robust compared to other worms. T/F - AnswersTrue
What group of parasites (genus or common name) is normally responsible for cutaneous
migrans? - AnswersHookworm larvae
What is hypobiosis? - Answersstate of arrested development
The worm that undergoes this phenomenon of hypobiosis is - AnswersOstertagia ostertagi
How are roundworms transmitted to foals: - AnswersIngestion of soil contaminated with
infective eggs
What is the minimum number of minutes a fecal flotation should stand before examination? -
Answers10
Trichinella spiralis is transmitted to humans by: - Answersingestion of under cooked pork
In the dog, adult heartworms are normally found in the: - AnswersRight ventricle
Which small animal parasite ova resemble strongyle ova in horses: - AnswersAncylostoma
caninum
A dog that chases and eats wild rabbits is most likely to become infected with which cestode? -
AnswersTaenia pisiformis
A local dairy farmer has just acquired some livestock from Louisiana and is concerned that they
may have Fasciola hepatica. What fecal examination method will give you the best chance of
finding the eggs of this parasite? - Answerssedimentation
A mature, egg-bearing tapeworm segment is called a - Answersgravid proglottid
An ectoparasite known both for its host specificity and site specificity is the: - Answerslouse
Fascioloides magna infection in sheep can be diagnosed by: - Answersnecropsy
A route of infection of hookworms that is not shared by roundworms is - Answersskin
penetration
Name the one trichostrongyle whose egg can be easily distinguished from the other
trichostrongyle-type eggs. - AnswersNematodirus spp
Occult heartworm infections occur in approximately 90% of: - Answerscats
Which of the following roundworms are not potentially infectious to humans: -
AnswersParascaris equorum
Trichuris vulpis is transmitted in which way: - AnswersIngestion of infective eggs
What is the intermediate host for Thelazia? - AnswersMusca autumnalis
The intermediate host for Dirofilaria immitis is the: - Answersmosquito
Which of the following worms is found by utilizing the Baermann technique rather than a fecal
flotation: - AnswersDictyocaulus viviparus
What is the infective stage of most nematodes: - AnswersL3
Children get pinworms from - Answerschildren
T/F
Whipworm eggs are shed intermittently - AnswersTRUE
In puppies, transplacental transmission is the primary route of infection for: - AnswersToxocara
Prepatent period is - Answersthe time from entrance of the parasite into the definitive host to
the time of larvae and egg production
Name the major lungworm of importance in the cattle industry (scientific name). -
AnswersDictyocaulus viviparus
Oxyuris equi does require an arthropod host
T/F - AnswersFalse
Which organ is most commonly affected in cats that develop disease due to infection with
Dirofilaria immitis : - Answerslung
, The parasite found in the abomasal gastric glands of ruminants is: - Answersostertagia spp
Name the three routes of transmission that are possible for Toxocara canis. - AnswersFecal oral,
transplacental, transmammary
How long can serology tests detect heartworms in a dog's blood? - AnswersSeveral months
which dewormer is not effective against ascarids - AnswersDroncit (praziquantel)
It is August and three of your sheep have died suddenly. Other sheep in the flock have pale
gums and one also has edema under her chin. You perform a fecal exam and find typical
trichostrongyle type eggs. Which of the following worms is the most likely culprit: -
AnswersHaemonchus contortus
Adult ascarids are very large and robust compared to other worms. T/F - AnswersTrue
What group of parasites (genus or common name) is normally responsible for cutaneous
migrans? - AnswersHookworm larvae
What is hypobiosis? - Answersstate of arrested development
The worm that undergoes this phenomenon of hypobiosis is - AnswersOstertagia ostertagi
How are roundworms transmitted to foals: - AnswersIngestion of soil contaminated with
infective eggs
What is the minimum number of minutes a fecal flotation should stand before examination? -
Answers10
Trichinella spiralis is transmitted to humans by: - Answersingestion of under cooked pork
In the dog, adult heartworms are normally found in the: - AnswersRight ventricle
Which small animal parasite ova resemble strongyle ova in horses: - AnswersAncylostoma
caninum
A dog that chases and eats wild rabbits is most likely to become infected with which cestode? -
AnswersTaenia pisiformis
A local dairy farmer has just acquired some livestock from Louisiana and is concerned that they
may have Fasciola hepatica. What fecal examination method will give you the best chance of
finding the eggs of this parasite? - Answerssedimentation
A mature, egg-bearing tapeworm segment is called a - Answersgravid proglottid
An ectoparasite known both for its host specificity and site specificity is the: - Answerslouse
Fascioloides magna infection in sheep can be diagnosed by: - Answersnecropsy
