Placental Stage and Extrauterine Life Quiz
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Questions and Answers

What is the period called when the fetal adaptations to extraterrestrial life take place?

  • Neurulation
  • Implantation
  • Gastrulation
  • Placentation (correct)
  • Which structure helps in the formation of the placenta and encloses the embryo?

  • Amnion
  • Chorion (correct)
  • Yolk sac
  • Allantois
  • Which layer gives rise to the nervous system and skin epidermis?

  • Mesoderm
  • Neural crest cells
  • Endoderm
  • Ectoderm (correct)
  • What is the first major event of organogenesis?

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

    Which structure forms part of the digestive tube, early blood cells, and vessels?

    <p>Yolk sac</p> Signup and view all the answers

    In the placental stage, what is the maternal interface to the placenta called?

    <p>Decidua capularis</p> Signup and view all the answers

    During embryonic development, the formation of body organs and systems is known as what?

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

    What does the somite known as dermatome cells form?

    <p>Dermis of skin</p> Signup and view all the answers

    Which part of the embryo gives rise to the brain and spinal cord via the neural tube?

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

    From which cell type does the somite known as sclerotome cells form vertebrae and ribs?

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

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