CFCC Vet Tech Parasitology Test 1: Nematoda
Exam UPDATED ACTUAL QUESTIONS AND
CORRECT ANSWERS
____________ is a zoonotic condition caused when infective eggs of Baylisascaris procyonis
are ingested by an incidental host. - CORRECT ANSWER neurologic larva migrans
A/an ____________ is a type of anthelmintic that paralyzes the nematode so that it passes out
in the feces. - CORRECT ANSWER vermifuge
An embryonated egg is - CORRECT ANSWER larvated
Which of the following is not a morphologic feature of nematodes?
Unsegmented
Elongated
Bilaterally symmetrical
Dorsoventrally flattened in cross section. - CORRECT ANSWER Dorsoventrally
flattened in cross section.
Which of the following represents the correct sequence of anatomical structures in a female
nematode?
Mouth, buccal cavity, esophagus, intestine, cloaca, anus, and tail
Mouth, esophagus, buccal cavity, intestine, rectum, anus, and tail
,Mouth, esophagus, buccal cavity, intestine, cloaca, anus, and tail
Mouth, buccal cavity, esophagus, intestine, rectum, anus, and tail - CORRECT
ANSWER Mouth, buccal cavity, esophagus, intestine, rectum, anus, and tail
Which of the following statements about nematodes is MOST accurate?
A female nematode can produce up to 100 eggs or larvae each day.
Nematodes are dioecious.
The most important nematode's organs are it's respiratory and reproductive systems.
Nematodes are hermaphroditic. - CORRECT ANSWER Nematodes are dioecious.
All of the following statements about nematodes are true except:
Nematodes can be free-living.
Nematodes primarily affect companion animals, as opposed to farm animals.
Nematodes can parasitize plants.
Nematodes parasitize both domestic and wild animals, as well as humans. - CORRECT
ANSWER nematodes primarily affect companion animals, as opposed to farm animals.
There are approximately ________ species of nematodes. - CORRECT
ANSWER 10,000
Which of the following statements about the life cycle of nematodes is the most accurate?
, When larvae molt, they are shedding their hypodermis
Canine hookworms have an indirect life cycle
In all cases, the infective stage can infect the definitive host only by intervention of the
intermediate host.
The first three larval stages can develop either in the external environment or within an
intermediate host, depending on the nematode in question. - CORRECT ANSWER The
first three larval stages can develop either in the external environment or within an
intermediate host, depending on the nematode in question.
Which larval stage in the life cycle of most nematodes is infective for the definitive host? -
CORRECT ANSWER third
Regarding Toxocara canis:
The most common symptom of a Toxocara canis infection is increased urination.
The L2 larvae migrate to the puppy's liver, where they grow into adult womrs.
The larvae can cross the placental barrier.
Accidental ingestion by humans of Toxocara canis ova causes cutaneous larva migrans. -
CORRECT ANSWER the larvae can cross the placental barrier.
Which of following statements about Toxocara canis is the most accurate?
Adult worms are 10 to 15 mm in length and elongated when passed in the feces.
Exam UPDATED ACTUAL QUESTIONS AND
CORRECT ANSWERS
____________ is a zoonotic condition caused when infective eggs of Baylisascaris procyonis
are ingested by an incidental host. - CORRECT ANSWER neurologic larva migrans
A/an ____________ is a type of anthelmintic that paralyzes the nematode so that it passes out
in the feces. - CORRECT ANSWER vermifuge
An embryonated egg is - CORRECT ANSWER larvated
Which of the following is not a morphologic feature of nematodes?
Unsegmented
Elongated
Bilaterally symmetrical
Dorsoventrally flattened in cross section. - CORRECT ANSWER Dorsoventrally
flattened in cross section.
Which of the following represents the correct sequence of anatomical structures in a female
nematode?
Mouth, buccal cavity, esophagus, intestine, cloaca, anus, and tail
Mouth, esophagus, buccal cavity, intestine, rectum, anus, and tail
,Mouth, esophagus, buccal cavity, intestine, cloaca, anus, and tail
Mouth, buccal cavity, esophagus, intestine, rectum, anus, and tail - CORRECT
ANSWER Mouth, buccal cavity, esophagus, intestine, rectum, anus, and tail
Which of the following statements about nematodes is MOST accurate?
A female nematode can produce up to 100 eggs or larvae each day.
Nematodes are dioecious.
The most important nematode's organs are it's respiratory and reproductive systems.
Nematodes are hermaphroditic. - CORRECT ANSWER Nematodes are dioecious.
All of the following statements about nematodes are true except:
Nematodes can be free-living.
Nematodes primarily affect companion animals, as opposed to farm animals.
Nematodes can parasitize plants.
Nematodes parasitize both domestic and wild animals, as well as humans. - CORRECT
ANSWER nematodes primarily affect companion animals, as opposed to farm animals.
There are approximately ________ species of nematodes. - CORRECT
ANSWER 10,000
Which of the following statements about the life cycle of nematodes is the most accurate?
, When larvae molt, they are shedding their hypodermis
Canine hookworms have an indirect life cycle
In all cases, the infective stage can infect the definitive host only by intervention of the
intermediate host.
The first three larval stages can develop either in the external environment or within an
intermediate host, depending on the nematode in question. - CORRECT ANSWER The
first three larval stages can develop either in the external environment or within an
intermediate host, depending on the nematode in question.
Which larval stage in the life cycle of most nematodes is infective for the definitive host? -
CORRECT ANSWER third
Regarding Toxocara canis:
The most common symptom of a Toxocara canis infection is increased urination.
The L2 larvae migrate to the puppy's liver, where they grow into adult womrs.
The larvae can cross the placental barrier.
Accidental ingestion by humans of Toxocara canis ova causes cutaneous larva migrans. -
CORRECT ANSWER the larvae can cross the placental barrier.
Which of following statements about Toxocara canis is the most accurate?
Adult worms are 10 to 15 mm in length and elongated when passed in the feces.
