Trematodes And Cestodes Quiz

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Trematodes And Cestodes Quiz - Quiz

Trematodes and cestodes quiz


Questions and Answers
  • 1. 

    Antihelmintics are used to treat what type of infection/infestation?

    • A.

      Fleas and Ticks

    • B.

      Protozoans

    • C.

      Insects

    • D.

      Cesodes and trematodes

    Correct Answer
    D. Cesodes and trematodes
    Explanation
    Antihelmintics are medications used to treat infections or infestations caused by parasitic worms, specifically cesodes and trematodes. Cesodes refer to tapeworms, while trematodes refer to flukes. These parasitic worms can infect various parts of the body, including the intestines, liver, and lungs. Antihelmintics work by either killing the worms or preventing them from reproducing, helping to eliminate the infection or infestation. Therefore, the correct answer is cesodes and trematodes.

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  • 2. 

    The common name for Fasciola hepatica is...

    • A.

      Liver fluke

    • B.

      Lung fluke

    • C.

      Lizard-poisoning fluke

    • D.

      Bladder worm

    Correct Answer
    A. Liver fluke
    Explanation
    Fasciola hepatica is commonly known as the liver fluke. This parasitic flatworm infects the liver of mammals, including humans, and causes a disease called fascioliasis. It has a complex life cycle involving snails as intermediate hosts. The name "liver fluke" accurately describes its habitat and the organ it infects, making it the correct answer.

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  • 3. 

    The first IH of flukes is a

    Correct Answer
    snail
    Explanation
    The correct answer is "snail" because flukes have a complex life cycle that involves multiple hosts. The first intermediate host in the life cycle of flukes is usually a snail. Flukes lay their eggs in water, and when these eggs hatch, they infect the snail. Inside the snail, the flukes undergo further development before being released into the water again as larvae. These larvae then infect the second intermediate host or the definitive host, depending on the species of fluke. Therefore, the snail plays a crucial role as the initial host in the life cycle of flukes.

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  • 4. 

    How would a dog become infected with Taenia pisiformis?

    • A.

      Ingesting the eggs

    • B.

      Ingesting raw salmon

    • C.

      Ingesting infected rabbit

    • D.

      Direct penetration of skin

    Correct Answer
    C. Ingesting infected rabbit
    Explanation
    A dog can become infected with Taenia pisiformis by ingesting an infected rabbit. Taenia pisiformis is a tapeworm that commonly infests rabbits, and when a dog consumes the flesh of an infected rabbit, it can become infected with the tapeworm as well. The tapeworm eggs are present in the rabbit's tissues, and once ingested by the dog, they develop into adult tapeworms in the dog's intestines. Therefore, ingestion of an infected rabbit is the most likely route of transmission for Taenia pisiformis in dogs.

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  • 5. 

    The               sp. has a Zoonotic parasite which can cause hydatid cyst disease in humans.

    Correct Answer
    Echinococcus
    Explanation
    Echinococcus is the correct answer because it is a genus of tapeworms that can cause hydatid cyst disease in humans. This disease is zoonotic, meaning it can be transmitted from animals to humans, and is caused by the larvae of Echinococcus parasites. These parasites typically infect the intestines of dogs, but humans can become infected by ingesting the eggs through contaminated food or water. Once inside the body, the larvae can form cysts in various organs, such as the liver and lungs, leading to hydatid cyst disease.

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  • 6. 

    Anoplocephala perfoliata causes obstruction and ulceration of the intestinal tract of -------------

    Correct Answer
    Horses
    Explanation
    Anoplocephala perfoliata is a type of tapeworm that commonly infects horses. This parasite can cause obstruction and ulceration in the intestinal tract of horses. When the tapeworms attach to the intestinal walls, they can cause inflammation, blockages, and damage to the tissues, leading to various gastrointestinal issues. These can include symptoms such as colic, weight loss, diarrhea, and poor appetite. Therefore, it is important to regularly deworm horses to prevent and treat infections caused by Anoplocephala perfoliata.

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  • 7. 

    Dipyllidium caninum is commonly known as the ------------

    Correct Answer
    Flea tape
    Explanation
    Dipyllidium caninum is commonly known as flea tape because it is a type of tapeworm that infests dogs and cats, and is commonly transmitted through fleas. The name "flea tape" likely comes from the fact that this tapeworm is often found in the intestines of animals that have been infested with fleas. It is important to note that while flea tape is a common name for Dipyllidium caninum, there are other tapeworm species that can also infest animals.

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  • 8. 

    What is the best way to control cestode parasite problems?

  • 9. 

    This is commonly know as the Broad fish tapeworm.

    • A.

      Dipyllidium caninum

    • B.

      Vampirolepis nana

    • C.

      Diphyllobothrium latum

    • D.

      Taenia solium

    Correct Answer
    C. Diphyllobothrium latum
    Explanation
    Diphyllobothrium latum is commonly known as the Broad fish tapeworm. This tapeworm is a parasitic flatworm that infects humans and other mammals. It is typically acquired by consuming raw or undercooked fish that contain the larvae of the tapeworm. Once ingested, the larvae develop into adult tapeworms in the intestines and can cause symptoms such as abdominal pain, diarrhea, and vitamin B12 deficiency. Diphyllobothrium latum is the correct answer because it accurately identifies the specific tapeworm mentioned in the question.

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  • 10. 

    The first intermediate host of the flea tapeworm is a ----------. It contains the life stage known as a/an -----------.

    Correct Answer
    flea, cysticercoid
    flea cysticercoid
    Explanation
    The first intermediate host of the flea tapeworm is a flea. In this host, the tapeworm undergoes a life stage known as a cysticercoid. This stage is crucial for the tapeworm's development and allows it to continue its life cycle.

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  • 11. 

    2 advantages of a fecal smear are:

  • 12. 

    A dog acquires Paragonimus kelicotti infection by ingesting

    • A.

      Infected frogs

    • B.

      Ova

    • C.

      Infected snakes

    • D.

      Infected crayfish

    Correct Answer
    D. Infected crayfish
    Explanation
    Dogs acquire Paragonimus kelicotti infection by ingesting infected crayfish. Paragonimus kelicotti is a type of lung fluke that infects various animals, including crayfish. When a dog ingests the infected crayfish, the parasite's eggs hatch in the dog's digestive system and migrate to the lungs, causing infection. Ingesting infected frogs, ova, or infected snakes does not lead to Paragonimus kelicotti infection in dogs.

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  • 13. 

    The head of a tapeworm is called a ------------ and the chain of progressively maturing proglottids is called a ----------------.

    Correct Answer
    scolex, strobila
    scolex strobila
    Explanation
    The head of a tapeworm is called a scolex, while the chain of progressively maturing proglottids is called a strobila.

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  • 14. 

    Which hatches from the egg of a pseudophyllidean?

    • A.

      Metacercaria

    • B.

      Cercaria

    • C.

      Coracidium

    • D.

      Mesocercaria

    Correct Answer
    C. Coracidium
    Explanation
    Coracidium is the correct answer because it is the larval stage that hatches from the egg of a pseudophyllidean. Pseudophyllideans are a type of tapeworm, and coracidium is the first larval stage in their life cycle. After hatching, the coracidium larvae are released into water where they can infect their intermediate hosts, typically small crustaceans. This larval stage is an important step in the life cycle of pseudophyllideans and is specific to this group of tapeworms.

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  • 15. 

    The time required for the eggs to float to the coverslip when performing a fecal floatation using sodium nitrate is -------------.

    Correct Answer
    10 mins
    10 minutes
    Explanation
    The correct answer for the time required for the eggs to float to the coverslip when performing a fecal floatation using sodium nitrate is 10 minutes.

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  • 16. 

    List 4 negative effects that parasites can have on their host.

  • 17. 

    The ------------ and ------------- life stages of the fluke are found in the snail IH.

    Correct Answer
    sporocyst, redia
    sporocyst redia
    redia sporocyst
    redia, sporocyst
    Explanation
    The correct answer is "sporocyst, redia". The life stages of the fluke found in the snail intermediate host are first the sporocyst stage, followed by the redia stage.

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  • 18. 

    A ----------- procedure should be used when looking for trematode eggs.

    Correct Answer
    sedimentation
    Explanation
    When looking for trematode eggs, a sedimentation procedure should be used. Sedimentation is a technique commonly employed in parasitology to separate eggs or other parasite stages from fecal matter or other samples. In this procedure, the sample is mixed with a solution that causes the eggs to sink to the bottom while the debris and other materials float to the top. By carefully decanting the top layer and examining the sediment under a microscope, the trematode eggs can be identified and studied. This method is effective in concentrating the eggs and improving their visibility for accurate diagnosis.

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  • 19. 

    Define prepatent period.

  • 20. 

    A parasite that has a wide range of hosts is described as being

    • A.

      Monoxenous

    • B.

      Euryxenous

    • C.

      Stenoxenous

    • D.

      Homoxenous

    Correct Answer
    B. Euryxenous
    Explanation
    A parasite that has a wide range of hosts is described as being euryxenous. This means that the parasite is capable of infecting and living in multiple different host species. It has a broad host range, which allows it to adapt and survive in various environments.

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  • 21. 

    What are the 3 rules for safe handling of feces?

  • 22. 

    What are the 6 aspects of a gross fecal exam?

  • 23. 

    What are 2 disadvantages of a direct fecal smear?

  • 24. 

    The common name for Thysanosoma actinoides is...

    • A.

      Double-pored tapeworm

    • B.

      Dwarf tapeworm

    • C.

      Fringed tapeworm

    • D.

      Rumen fluke

    Correct Answer
    C. Fringed tapeworm
    Explanation
    The common name for Thysanosoma actinoides is fringed tapeworm.

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  • 25. 

    -------------- serve as hosts for the Monezia sp. and Anoplocephala sp.

    Correct Answer
    orbatid mites
    Explanation
    Orbatid mites are able to serve as hosts for the Monezia sp. and Anoplocephala sp. This means that these particular types of mites are capable of providing a suitable environment or habitat for these specific parasite species to live and reproduce. The orbatid mites likely have the necessary conditions or resources that the Monezia sp. and Anoplocephala sp. require in order to complete their life cycles.

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  • 26. 

    The DH for Moniezia benedini is

    • A.

      Horses

    • B.

      Pigs

    • C.

      Dogs

    • D.

      Cattle

    Correct Answer
    D. Cattle
    Explanation
    The DH for Moniezia benedini is cattle because Moniezia benedini is a tapeworm species that primarily infects cattle. It is commonly found in the small intestine of cattle and can cause health issues such as weight loss, poor growth, and decreased milk production. Therefore, cattle serve as the definitive host for Moniezia benedini.

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  • 27. 

    Monezia sp. reside in the the --------------- of their definitive hosts.

    Correct Answer
    small intestines
    small intestine
    Explanation
    Monezia sp. reside in the small intestines of their definitive hosts. This means that they inhabit the portion of the digestive system that comes after the stomach and before the large intestine. The use of the plural form "small intestines" suggests that there may be multiple segments or sections of the small intestine where these organisms can be found.

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  • 28. 

    Paranoplocephala mammilana is commonly known as the

    • A.

      Fringed tapeworm

    • B.

      Double pored tapeworm

    • C.

      Flea tapeworm

    • D.

      Dwarf tapeworm

    Correct Answer
    D. Dwarf tapeworm
    Explanation
    The correct answer is "Dwarf tapeworm." This is because the question is asking for the common name of Paranoplocephala mammilana, and the common name for this species is the dwarf tapeworm.

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  • 29. 

    A parasite with a narrow host range can be described as being --------------.

    Correct Answer
    stenoxenous
    Explanation
    A parasite with a narrow host range can be described as being stenoxenous. This means that the parasite is highly specialized and can only infect a limited number of host species. It is unable to survive or reproduce in a wide range of hosts, indicating a strong dependency on specific host characteristics for its survival.

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  • 30. 

    How would one describe a parasite that affects only one type of host?

    • A.

      Stenoxenous

    • B.

      Obligatory

    • C.

      Homoxenous

    • D.

      Monoxenous

    • E.

      Both C and D

    • F.

      None of the above

    Correct Answer
    E. Both C and D
    Explanation
    The correct answer is "Both C and D" because the terms "homoxenous" and "monoxenous" both describe parasites that affect only one type of host. "Homoxenous" refers to parasites that infect only one species of host, while "monoxenous" refers to parasites that infect only one individual host. Therefore, both terms accurately describe a parasite that affects only one type of host.

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  • 31. 

    Protozoans are multicellular organisms.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The statement is incorrect. Protozoans are actually unicellular organisms, meaning they are composed of a single cell. They are not multicellular, which refers to organisms made up of multiple cells working together.

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  • 32. 

    Fluke eggs are passed in the host's feces. When they make contact with water, they become -------------------. They then find a -------------- intermediate host and become ----------------, then become --------------. They then exit the snail and become ---------------. They then lose their tail and become--------------. They are then ingested by the definitive host and become --------------. Finally, they become ----------------.

    Correct Answer
    Miracidia snail sporocysts redia cercaria metacercaria maritas adults
    Explanation
    Fluke eggs are passed in the host's feces. When they make contact with water, they become miracidia. They then find a snail intermediate host and become sporocysts, then redia. They then exit the snail and become cercaria. They then lose their tail and become metacercaria. They are then ingested by the definitive host and become maritas. Finally, they become adults.

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  • 33. 

    Taenia saginata causes what?

    • A.

      Obstruction

    • B.

      Measly beef

    • C.

      Measly pork

    • D.

      Vomiting

    Correct Answer
    B. Measly beef
    Explanation
    Taenia saginata is a tapeworm that primarily infects cattle. When humans consume undercooked or raw beef infected with the larvae of Taenia saginata, they can develop a condition called taeniasis. This condition is characterized by the presence of adult tapeworms in the intestines, which can cause symptoms such as abdominal pain, nausea, and weight loss. The term "measly" refers to the presence of cysticerci (larval stage) in the beef meat, which is a characteristic feature of Taenia saginata infection. Therefore, the correct answer is "Measly beef."

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  • 34. 

    Taenia solium causes

    • A.

      Measly pork

    • B.

      Diarrhea

    • C.

      Measly beef

    • D.

      None of the above

    Correct Answer
    A. Measly pork
    Explanation
    Taenia solium is a parasitic tapeworm that infects pigs. When humans consume undercooked or raw pork infected with Taenia solium, they can develop a condition called "measly pork." This condition occurs when the tapeworm larvae migrate to various tissues in the human body, forming cysts and causing symptoms such as muscle pain, fever, and fatigue. Therefore, the correct answer is "Measly pork."

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  • 35. 

    Paramphistomum and Cotylophoron are commonly known as

    • A.

      Rumen flukes

    • B.

      Intestinal flukes

    • C.

      Lung flukes

    • D.

      Double-pored tapeworms

    Correct Answer
    A. Rumen flukes
    Explanation
    Paramphistomum and Cotylophoron are commonly known as rumen flukes. Rumen flukes are parasitic flatworms that infect the rumen, which is the first compartment of the stomach in ruminant animals such as cattle, sheep, and goats. These flukes cause inflammation and damage to the rumen, leading to weight loss, decreased milk production, and other digestive issues in affected animals. Therefore, the term "rumen flukes" accurately describes these parasites.

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  • 36. 

    Dicroelium dendriticum is commonly known as the

    • A.

      Rumen fluke

    • B.

      Lung fluke

    • C.

      Lancet fluke

    • D.

      Intestinal fluke

    Correct Answer
    C. Lancet fluke
    Explanation
    The correct answer is Lancet fluke. Dicroelium dendriticum is commonly known as the Lancet fluke. This parasite infects the liver and bile ducts of various mammals, including sheep and cattle. It has a lancet-shaped body, which gives it its name. The Lancet fluke has a complex life cycle, involving multiple hosts, including ants and snails. It can cause significant damage to the liver and can lead to weight loss and decreased productivity in infected animals.

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  • 37. 

    Platynosomum fastosum is commonly known as the

    • A.

      Lung fluke

    • B.

      Flea tape

    • C.

      Rumen fluke

    • D.

      Lizard poisoning fluke

    Correct Answer
    D. Lizard poisoning fluke
    Explanation
    Platynosomum fastosum is commonly known as the Lizard poisoning fluke because it is a parasitic flatworm that infects lizards and causes poisoning in them. It is not commonly found in other animals or humans, making it specific to lizards. The name "Lizard poisoning fluke" accurately describes the nature and effect of this particular fluke species.

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  • 38. 

    Alaria canis/felis is commonly known as the

    • A.

      Lung fluke

    • B.

      Intestinal fluke

    • C.

      Salmon-poisoning fluke

    • D.

      None of the above

    Correct Answer
    B. Intestinal fluke
    Explanation
    Alaria canis/felis is commonly known as the intestinal fluke. This parasite infects the intestines of dogs and cats. It is not the lung fluke or salmon-poisoning fluke, which are different types of parasites that infect the lungs and cause salmon poisoning, respectively. Therefore, the correct answer is intestinal fluke.

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  • 39. 

    Heterobilharzia americana is commonly known as the

    • A.

      Canine schistosome

    • B.

      Double-pored tapeworm

    • C.

      Lancet fluke

    • D.

      Rumen fluke

    Correct Answer
    A. Canine schistosome
    Explanation
    The correct answer is Canine schistosome. Heterobilharzia americana is commonly known as the Canine schistosome. Schistosomes are a type of parasitic flatworm that infects mammals, including dogs. They are commonly found in the blood vessels of the urinary bladder and the intestines of dogs, causing a disease known as schistosomiasis. This disease can lead to various symptoms such as diarrhea, blood in the urine, and weight loss. Therefore, Canine schistosome is the appropriate term to describe Heterobilharzia americana.

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  • 40. 

    Paragonimus kellicotti is commonly known as the

    • A.

      Liver fluke

    • B.

      Lung fluke

    • C.

      Flea tape

    • D.

      Intestinal fluke

    Correct Answer
    B. Lung fluke
    Explanation
    Paragonimus kellicotti is commonly known as the lung fluke. This is because it is a species of fluke that primarily infects the lungs of mammals, including humans. It is a parasitic worm that can cause a disease known as paragonimiasis, which is characterized by symptoms such as coughing, chest pain, and fever. The lung fluke gets its name from its habitat and the specific organ it infects in its host.

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