Taeniidae Family: Tapeworms and Hydatid Cysts

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Questions and Answers

What is the characteristic feature of the scolex of Diphyllobothrium latum?

  • Two longitudinal grooves (correct)
  • Four prominent suckers
  • A single longitudinal groove
  • A conical retractile rostellum

What is the shape of the uterus in Diphyllobothrium latum?

  • Branched convoluted
  • Unbranched convoluted (correct)
  • Tubular
  • Rosette-shaped

What is the size of the gravid segments of Dipylidium caninum?

  • Pea-sized
  • Bean-sized
  • Lentil-sized
  • Rice grain-sized (correct)

What is the characteristic shape of the body of cestodes?

<p>Flattened dorsoventrally (C)</p> Signup and view all the answers

Which of the following orders of Cestodes infects animals and is of significance to veterinary medicine?

<p>Diphyllobothriidea and Cyclophyllidea (D)</p> Signup and view all the answers

What is the characteristic feature of the eggs of Diphyllobothrium latum?

<p>All of the above (D)</p> Signup and view all the answers

What is the function of the scolex in tapeworms?

<p>Anterior attachment and holdfast (A)</p> Signup and view all the answers

Which of the following is NOT a type of proglottid?

<p>Ventricular segment (C)</p> Signup and view all the answers

What is the length of the adult worm of Dipylidium caninum in the intestine?

<p>10-70 cm (B)</p> Signup and view all the answers

What is the specific gravity of the sodium nitrate solution?

<p>1.18 (C)</p> Signup and view all the answers

What is the role of the neck in the anatomy of tapeworms?

<p>Germinal region from which the strobila arises (D)</p> Signup and view all the answers

How many parts does the adult tapeworm consist of?

<p>Three (C)</p> Signup and view all the answers

What is the characteristic of the scolex of Echinococcus granulosus?

<p>It has a prominent rostellum with two rows of hooklets (B)</p> Signup and view all the answers

What is the number of proglottides in Echinococcus granulosus?

<p>Three (D)</p> Signup and view all the answers

What is the typical location of the metacestode of Echinococcus granulosus in the intermediate host?

<p>Liver, lungs (B)</p> Signup and view all the answers

What is the characteristic of the eggs of Taenia spp.?

<p>They have a radially-striated internal oncosphere with six refractile hooks (D)</p> Signup and view all the answers

Which of the following tapeworms has an invaginated scolex with a rostellum and hooks?

<p>Cysticercus cellulosae (D)</p> Signup and view all the answers

What is the maximum length of the adult Taenia pisiformis worm?

<p>Up to 20 m (D)</p> Signup and view all the answers

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