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Human Embryonic Development: Cleavage and Morula
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Human Embryonic Development: Cleavage and Morula

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Questions and Answers

What is the direction of primitive streak formation in the embryo?

  • Cranial-caudal direction
  • Caudal-cranial direction (correct)
  • Left-right direction
  • Dorsal-ventral direction
  • What is the result of the proliferation and migration of epiblast cells?

  • Neurulation
  • Formation of notochord
  • Primitive streak formation (correct)
  • Formation of somites
  • What is the process that establishes dorsal-ventral and left-right symmetry in the embryo?

  • Neurulation
  • Primitive streak formation (correct)
  • Formation of trilaminar embryo
  • Gastrulation
  • What is the correct sequence of events in embryonic development?

    <p>Primitive streak formation, formation of trilaminar embryo, gastrulation</p> Signup and view all the answers

    What is the structure that gives rise to the notochord?

    <p>Hensen's node</p> Signup and view all the answers

    What is the process that leads to the formation of somites?

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

    What is the stage of embryonic development that follows gastrulation?

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

    What is the result of the elongation of the primitive streak?

    <p>Establishment of dorsal-ventral and left-right symmetry</p> Signup and view all the answers

    What is the purpose of the primitive streak in embryonic development?

    <p>To establish dorsal-ventral and left-right symmetry</p> Signup and view all the answers

    What is the correct sequence of events in embryonic development?

    <p>Primitive streak formation, formation of trilaminar embryo, gastrulation</p> Signup and view all the answers

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