Taeniasis/Cysticercosis Quiz Questions And Answers

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  • 1/35 Questions

    T. solium has an armed scolex

    • True
    • False
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About This Quiz


Do you know about taeniasis and cysticercosis? Can you differentiate between these two? If so, give this taeniasis/cysticercosis quiz a try and learn a few essential things about these two terminologies. Cysticercosis is a parasitic infection that is caused by tapeworm Taenia solium's larval cysts, whereas taeniasis is caused by tapeworm species Taenia saginata. The quiz asks questions related to tapeworms, Taenia solium, and cestodes. Shall we begin the quiz now? Best of luck!

Taeniasis/Cysticercosis Quiz Questions And Answers - Quiz

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  • 2. 

    Cyclophyllidean tapeworm are hermaphroditic

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Cyclophyllidean tapeworms are hermaphroditic, meaning that they possess both male and female reproductive organs. This allows them to self-fertilize and produce offspring without the need for a mate. This characteristic is common among tapeworms and is advantageous in their parasitic lifestyle, as it ensures reproductive success even when suitable mates are scarce or inaccessible.

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  • 3. 

    The cestode responsible for cysticercosis.

    • T. saginata

    • T. solium

    • T. africana

    • T. asiatica

    Correct Answer
    A. T. solium
    Explanation
    T. solium is the correct answer because it is the cestode responsible for cysticercosis. Cysticercosis is a parasitic infection caused by the larval stage of T. solium, commonly known as the pork tapeworm. This infection occurs when humans consume undercooked pork contaminated with the eggs of the tapeworm. The larvae then develop into cysts in various tissues of the body, including the brain, muscles, and eyes, leading to a range of symptoms and complications. T. solium is a significant public health concern in many parts of the world, particularly in developing countries with poor sanitation and hygiene practices.

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  • 4. 

    Larval migration of organs or tissue especially striated muscles in the brain , subcutaneous tissue, eye and heart producing inflammation

    • Echinochiasis

    • Cysticercosis

    • Diphylobothriasis

    • NOTA

    Correct Answer
    A. Cysticercosis
    Explanation
    Cysticercosis is a parasitic infection caused by the larval stage of the pork tapeworm, Taenia solium. The larvae can migrate to various organs or tissues in the body, including the brain, subcutaneous tissue, eye, and heart. This migration can lead to inflammation in these affected areas. Therefore, cysticercosis is the most appropriate explanation for the given statement about larval migration and inflammation in organs or tissues.

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  • 5. 

    Anterior attachment organ of cestodes

    • Acetabula

    • Scolex

    • Strobila

    • Oncosphere

    Correct Answer
    A. Scolex
    Explanation
    The anterior attachment organ of cestodes is called the scolex. The scolex is a specialized structure found at the anterior end of tapeworms, which allows them to attach to the host's intestinal wall. It is equipped with hooks, suckers, or both, which help the tapeworm to anchor itself firmly. The scolex is an essential part of the tapeworm's anatomy, as it enables the parasite to remain in place and absorb nutrients from the host.

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  • 6. 

    Cysticercus cellulosae is the infectove stage of this cestode.

    • T. saginata

    • T. solium

    • T. africana

    • T. asiatica

    Correct Answer
    A. T. solium
    Explanation
    Cysticercus cellulosae is the infective stage of T. solium, a cestode. T. solium is a tapeworm that primarily infects humans and causes a condition known as taeniasis. The adult worm resides in the small intestine of humans, while the cysticercus stage is found in the muscles and other tissues of pigs and humans. Ingesting undercooked pork containing cysticerci can lead to the development of T. solium infection in humans. Therefore, T. solium is the correct answer as it matches the given information.

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  • 7. 

    T. solium infection may involve the eyes (retinal or subretinal)

    • True

    • False

    Correct Answer
    A. True
    Explanation
    T. solium infection, also known as cysticercosis, is caused by the tapeworm Taenia solium. This infection can affect various organs in the body, including the eyes. In some cases, the larvae of the tapeworm can migrate to the eyes and cause retinal or subretinal involvement. This can lead to symptoms such as blurred vision, floaters, or even blindness. Therefore, the statement that T. solium infection may involve the eyes is true.

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  • 8. 

    Taenia solium is armed

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Has 4 acetabula and a rostellum with double crown of 25-30 Y-shaped hooklets.

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  • 9. 

    Tapeworms have well-defined digestive systems

    • True

    • False

    Correct Answer
    A. False
    Explanation
    They don't have digestive systems, they absorb food and nutrients from their host.

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  • 10. 

    T. solium is capable of autoinfection

    • True

    • False

    Correct Answer
    A. True
    Explanation
    T. solium, also known as the pork tapeworm, is indeed capable of autoinfection. Autoinfection occurs when the parasite's eggs are ingested, hatch, and the resulting larvae migrate within the host's body to infect other tissues. In the case of T. solium, the larvae can travel to various organs, including the brain, causing a condition known as neurocysticercosis. This ability to self-infect makes T. solium a particularly dangerous parasite.

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  • 11. 

    Hymenolepis nana variant Fraterna uses fleas and beetles as intermediate hosts which is usually found in the mice

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement is true because Hymenolepis nana variant Fraterna does indeed use fleas and beetles as intermediate hosts. These intermediate hosts are typically found in mice, which suggests that the life cycle of this variant of Hymenolepis nana involves infecting mice, then being transmitted to fleas or beetles when the mice are infested with these insects. Therefore, the correct answer is true.

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  • 12. 

    This is twidely used as a treatment for cestode infections.

    • Niclosamide

    • Albendazole

    • Ivermectin

    • Praziquantel

    Correct Answer
    A. Praziquantel
    Explanation
    Praziquantel is widely used as a treatment for cestode infections. Cestodes, also known as tapeworms, are parasitic flatworms that infect humans and animals. Praziquantel works by causing muscle paralysis in the tapeworm, leading to its detachment from the host's intestinal wall. It is effective against a wide range of tapeworm species and is considered the drug of choice for cestode infections. Niclosamide, Albendazole, and Ivermectin are also used in the treatment of various parasitic infections, but Praziquantel is specifically known for its efficacy against cestodes.

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  • 13. 

    All of the following are criteria for cure of Taenia spp., except:

    • Negative stool examination, 3 months after treatment

    • Recovery of scolex

    • Both A and B

    Correct Answer
    A. Both A and B
    Explanation
    The criteria for cure of Taenia spp. include negative stool examination, 3 months after treatment and recovery of scolex. Therefore, the correct answer is "Both A and B" because both of these criteria are necessary for confirming the cure of Taenia spp.

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  • 14. 

    Eggs of Taenia spp. are indistinguishable

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement is true because the eggs of Taenia spp., which are a group of tapeworms, cannot be differentiated from each other based on their appearance alone. This is because the eggs of different species within the Taenia genus have similar characteristics and cannot be distinguished under a microscope. Therefore, it is not possible to identify the specific species of Taenia based solely on the appearance of their eggs.

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  • 15. 

    H. nana has has direct and indirect life cycles

    • True

    • False

    Correct Answer
    A. True
    Explanation
    H. nana refers to Hymenolepis nana, which is a tapeworm that infects humans. This tapeworm has both direct and indirect life cycles. In the direct life cycle, the eggs are ingested by a human host, and the larvae develop into adult tapeworms in the intestines. In the indirect life cycle, the eggs are ingested by an intermediate host, usually a beetle or a grain mite, and the larvae develop into cysticercoids. When the intermediate host is consumed by a human, the cysticercoids develop into adult tapeworms in the intestines. Therefore, the statement that H. nana has direct and indirect life cycles is true.

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  • 16. 

    Man serves as the definitive and intermediate host of T. solium

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement is true because humans play a crucial role in the life cycle of T. solium, a parasite commonly known as the pork tapeworm. Humans serve as the definitive host, which means that the adult tapeworm resides in the intestines of humans. They are also the intermediate host, as they can become infected by ingesting the eggs or larvae of the tapeworm. This makes humans an essential part of the life cycle of T. solium.

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  • 17. 

    These are membranes of cestode eggs which serves as covering for the embryo and which bears six elongated hooks.

    • Acetabula

    • Bipolar plugs

    • Operculum

    • Oncospheres

    Correct Answer
    A. Oncospheres
    Explanation
    Oncospheres are the correct answer because they are the embryos of cestode eggs and are covered by membranes. These membranes also have six elongated hooks, which help the oncospheres attach to the host's tissues. Acetabula refers to the suckers on the scolex of a tapeworm, bipolar plugs are structures found in the uterus of some cestodes, and operculum is a lid-like structure found in some parasites, but none of these options fit the description given in the question.

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  • 18. 

    H. nana has an armed scolex.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    H. nana, also known as the dwarf tapeworm, is a parasitic worm that infects humans. It has an armed scolex, which refers to the presence of hooks or suckers on the head of the tapeworm. These hooks or suckers help the tapeworm attach itself to the intestinal wall of the host. Therefore, the statement "H. nana has an armed scolex" is true.

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  • 19. 

    Chain of segments of proglottids

    • Rostellum

    • Acetabula

    • Strobila

    • Proglottid

    Correct Answer
    A. Strobila
    Explanation
    The given answer, "Strobila," is the correct answer because it refers to a chain of segments of proglottids. The other options, Rostellum, Acetabula, and Proglottid, are all individual parts or structures of a tapeworm but do not describe the chain of segments. Therefore, the correct answer is Strobila.

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  • 20. 

    How many lateral branches does T. saginata have?

    • 15-20

    • 10-15

    • 7-15

    • 7-12

    Correct Answer
    A. 15-20
    Explanation
    T. saginata, also known as the beef tapeworm, has 15-20 lateral branches. These lateral branches are extensions that protrude from the main body of the tapeworm. The number of lateral branches can vary within this range, but on average, T. saginata has around 15-20 of them.

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  • 21. 

    An elongated protrusible structure at the middle of the scolex

    • Rostellum

    • Acetabula

    • Strobila

    • Proglottid

    Correct Answer
    A. Rostellum
    Explanation
    The correct answer is "Rostellum." A rostellum is an elongated protrusible structure located in the middle of the scolex. It is found in certain parasites, particularly tapeworms, and is used for attachment to the host's intestinal wall. The rostellum helps the tapeworm maintain its position and absorb nutrients from the host. Acetabula refers to suckers used for attachment, strobila refers to the segmented body of a tapeworm, and proglottid refers to individual segments of the tapeworm's body.

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  • 22. 

    How many lateral branches do T. solium have?

    • 8-20

    • 7-15

    • 15-30

    • 5-10

    Correct Answer
    A. 7-15
    Explanation
    T. solium, also known as the pork tapeworm, typically has 7-15 lateral branches. These branches are extensions that protrude from the main body of the tapeworm. The specific number of lateral branches can vary within this range, but it is generally between 7 and 15.

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  • 23. 

    Which of the following is a Pseudophyllidean tapeworm?

    • D. latum

    • D. caninum

    • H. nana

    • E. granulosus

    Correct Answer
    A. D. latum
    Explanation
    D. latum is a Pseudophyllidean tapeworm. Pseudophyllidean tapeworms are a type of tapeworm that infect fish-eating mammals, including humans. D. latum, also known as the fish tapeworm, is one of the largest tapeworms that infect humans. It is commonly found in freshwater fish, especially in regions where raw or undercooked fish is consumed. The adult tapeworm resides in the small intestine of the host and can cause symptoms like abdominal pain, diarrhea, and weight loss. Therefore, D. latum is the correct answer as it is a well-known example of a Pseudophyllidean tapeworm.

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  • 24. 

    Gravid segments are found near the anterior end of the tapeworm.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Gravid segments are found at the terminal portion that contains eggs.

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  • 25. 

    T. saginata has an armed scolex

    • True

    • False

    Correct Answer
    A. False
    Explanation
    T. saginata, also known as the beef tapeworm, does not have an armed scolex. The armed scolex is a characteristic feature of another tapeworm species called T. solium, which infects humans and causes a disease called cysticercosis. In T. saginata, the scolex is unarmed, meaning it does not have any hooks or suckers. Instead, it has four suckers that help it attach to the intestinal wall of its host. Therefore, the correct answer is false.

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  • 26. 

    The detachment of a gravid segment from the main body of a tapeworm is called

    • Apoptosis

    • Apolysis

    • Diapedesis

    • Apostolosis

    Correct Answer
    A. Apolysis
    Explanation
    The term "apolysis" refers to the detachment of a gravid segment from the main body of a tapeworm. This process occurs during the reproductive cycle of tapeworms, where the mature segment containing eggs breaks off and is expelled from the host's body. Apoptosis refers to programmed cell death, diapedesis refers to the migration of white blood cells through blood vessel walls, and "apostolosis" is not a recognized term in biology.

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  • 27. 

    A recovery of this cestode organ indicates that the patient is completely treated.

    • Acetabula

    • Strobila

    • Scolex

    • Proglottid

    Correct Answer
    A. Scolex
    Explanation
    The scolex is the head of a cestode (tapeworm) that contains specialized organs for attachment to the host's intestine. When the scolex is recovered, it indicates that the tapeworm has been completely treated and removed from the patient's body. The other options, acetabula, strobila, and proglottid, are different parts of the tapeworm's body but do not necessarily indicate complete treatment.

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  • 28. 

    Cysticercus bovis has the ability to manifest cysticercosis

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Cysticercus bovis does not have the ability to manifest cysticercosis. Cysticercosis is a disease caused by the larvae of the pork tapeworm, Taenia solium, not Cysticercus bovis. Cysticercus bovis is the larval stage of the tapeworm Taenia saginata, which causes a different disease called taeniasis in humans. Therefore, the statement is false.

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  • 29. 

    The infective stage of H. nana

    • Adult

    • Egg

    • Larva (cysticercoid)

    • Gravid segment

    Correct Answer
    A. Larva (cysticercoid)
    Explanation
    The infective stage of H. nana is the larva (cysticercoid). This stage is the result of the larva developing and encysting within the intermediate host. Once ingested by the definitive host, the cysticercoid larva can mature into an adult tapeworm. The adult tapeworm then produces gravid segments, which contain eggs that are passed in the host's feces. Therefore, the correct answer is larva (cysticercoid).

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  • 30. 

    Strobilas may be armed or unarmed

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Rostellum may be armed or unarmed

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  • 31. 

    A structure of D. latum that is a counterpart of acetabula of Taenia spp.

    • Sucking discs

    • Trilobate lips

    • Bothria

    • NOTA

    Correct Answer
    A. Bothria
    Explanation
    Bothria are structures found in D. latum that serve as the counterpart to the acetabula in Taenia spp. Bothria are specialized suckers or grooves located on the scolex (head) of the tapeworm. They are used for attachment to the host's intestinal wall, allowing the tapeworm to absorb nutrients. This adaptation is necessary for the tapeworm's survival and reproduction within the host.

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  • 32. 

    All of the following can be used for the diagnosis of cysticercosis, except:

    • Proglottids or scolex in feces

    • CSF abnormalities

    • CAT Scans

    • MRI

    Correct Answer
    A. Proglottids or scolex in feces
    Explanation
    Finding eggs, proglottids and scolex in feces are used for intestinal infections.

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  • 33. 

    Considered as one of the most serious zoonotic disease worldwide.

    • Diphyllobothriasis

    • Taeniasis solium

    • Hymenolepiasis

    • Neurocysticercosis

    Correct Answer
    A. Neurocysticercosis
    Explanation
    Neurocysticercosis is considered as one of the most serious zoonotic diseases worldwide. It is caused by the ingestion of eggs of the pork tapeworm, Taenia solium. These eggs can be found in contaminated food or water. Once ingested, the eggs hatch and the larvae migrate to various tissues in the body, including the brain, causing neurological symptoms. Neurocysticercosis is a significant public health concern in many developing countries, particularly in areas where open defecation and poor sanitation practices are common. It can lead to seizures, epilepsy, and other serious complications if left untreated.

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  • 34. 

    This is the only human tapeworm that can complete its life cycle in a single host

    • Taenia spp.

    • H. nana

    • E. granulosus

    • D. latum

    Correct Answer
    A. H. nana
    Explanation
    H. nana is the correct answer because it is the only human tapeworm that can complete its life cycle in a single host. This means that the tapeworm can go through all stages of its life, including egg, larva, and adult, within the same host organism. The other options, Taenia spp., E. granulosus, and D. latum, require multiple hosts to complete their life cycles.

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  • 35. 

    Which helminths are most likely to have operculated eggs?

    • Nematodes

    • Cestodes

    • Trematodes

    • AOTA

    Correct Answer
    A. Trematodes
    Explanation
    Trematodes are the helminths that are most likely to have operculated eggs. Operculum is a lid-like structure that covers the opening of the eggs. This structure is found in some trematodes, such as the liver flukes and blood flukes. The operculum allows the eggs to be released from the parasite's body and ensures their survival in the environment until they are ingested by a suitable host. Nematodes and cestodes, on the other hand, do not typically have operculated eggs.

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