Echinococcus granulosus Egg Structure
25 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the function of the peristome?

  • To absorb nutrients
  • To aid in digestion
  • To expel waste
  • To lead to the mouth (correct)

    • What is the name of the opening at the posterior end?

  • Cytopore
  • Cytostome
  • Peristome
  • Cytopyge (correct)

    • Where is the cytostome located?

  • At the anterior end (correct)
  • Outside the cell
  • At the posterior end
  • In the middle of the cell

    • What is the relationship between the peristome and the cytostome?

    <p>The peristome leads to the cytostome</p> Signup and view all the answers

    What is the purpose of the cytopyge?

    <p>To expel waste</p> Signup and view all the answers

    What is the main difference between Islamic and non-Islamic countries in terms of Taenia solium infection?

    <p>The prevalence of raw or poorly cooked pork consumption</p> Signup and view all the answers

    What is the characteristic of the scolex of Taenia solium?

    <p>It has suckers and hooks</p> Signup and view all the answers

    What is the term for the tapeworm segment that contains a median uterus filled with eggs?

    <p>Gravid proglottid</p> Signup and view all the answers

    What is the other name for Taenia solium?

    <p>Armed tapeworm</p> Signup and view all the answers

    What is the characteristic of mature segments of tapeworms?

    <p>They contain male and female reproductive organs</p> Signup and view all the answers

    What is the shape of the egg of Echinococcus granulosus?

    <p>Round to oval</p> Signup and view all the answers

    What feature is characteristic of the shell of the egg of Echinococcus granulosus?

    <p>Radially striated</p> Signup and view all the answers

    What is the term for the six-hooked embryo inside the egg of Echinococcus granulosus?

    <p>Onchosphere</p> Signup and view all the answers

    What is the number of hooks present in the embryo inside the egg of Echinococcus granulosus?

    <p>Six</p> Signup and view all the answers

    What is the term for the egg of Echinococcus granulosus?

    <p>Ovum</p> Signup and view all the answers

    What is the characteristic body shape of worms in this phylum?

    <p>Compact dorsally and ventrally</p> Signup and view all the answers

    What is a unique feature of the reproductive system of these worms?

    <p>Mature segment with male and female reproductive system</p> Signup and view all the answers

    How do these worms obtain nutrients from their host?

    <p>Through absorption from the host's intestine</p> Signup and view all the answers

    What is absent in the body of these worms?

    <p>Digestive system</p> Signup and view all the answers

    What is the term for the characteristic of having both male and female reproductive systems?

    <p>Monoecious</p> Signup and view all the answers

    How many proglottids does Taenia solium typically have?

    <p>800-1000</p> Signup and view all the answers

    What is the composition of Taenia solium?

    <p>Head, neck, and 800-1000 proglottids</p> Signup and view all the answers

    What is a characteristic of the proglottids of Taenia solium?

    <p>They have both immature and mature forms</p> Signup and view all the answers

    What can be found in the proglottids of Taenia solium?

    <p>Immature proglottid</p> Signup and view all the answers

    What is the purpose of the proglottids in Taenia solium?

    <p>To reproduce and produce eggs</p> Signup and view all the answers

    Study Notes

    Egg (Ovum) of Echinococcus granulosus

    • Shape: Round to Oval
    • Radially striated shell
    • Onchosphere (Hexacanth embryo) has:
      • Six-hooked embryo inside the egg
      • Anterior end: Groove (peristome) leading to mouth (cytostome)
      • Posterior end: Small anal pore (cytopyge)

    Characteristics of Phylum

    • Compact bodies: Dorsally and ventrally
    • Hermaphroditic helminthic (monoecious): Mature segment has male and female reproductive system
    • No digestive system: No mouth, no gut, no anus
    • Absorb food from host's intestine through tegument
    • No alimentary canal

    Taenia solium (Pork Tapeworm)

    • Also known as armed tapeworm
    • Found in many parts of the world where pork is eaten raw or poorly cooked
    • Rarely found in Islamic countries
    • Scolex (head) has:
      • Suckers
      • Hooks
    • Composition:
      • Head and neck
      • 800-1000 proglottids
      • Proglottids types:
        • Immature proglottid
        • Mature proglottid (contains male and female reproductive organs)
        • Gravid proglottid (has a median uterus filled with eggs)

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    Learn about the shape and features of the egg of Echinococcus granulosus, including its radially striated shell and onchosphere embryo.

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser