Types of Cranial Meningocele
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Questions and Answers

During neurulation, what is the first step in the formation of the nervous system?

  • Formation of neural plate and neural folds (correct)
  • Neural crest formation
  • Closure of neural folds to form the neural tube
  • Development of the spinal cord
  • Which structure originates from the neural crest during neurulation?

  • Neuroepithelium
  • Neural tube (correct)
  • Layers of neural tube
  • Spinal cord
  • What is the term for the embryo during the period of organogenesis from the 3rd to 8th week of human development?

  • Neural tube defect
  • Neural plate
  • Neurula (correct)
  • Neuroepithelium
  • Which defect may arise if there is a failure in the closure of neural folds during neurulation?

    <p>Neural tube defect</p> Signup and view all the answers

    What is the function of the neural tube during development?

    <p>Protection for spinal cord and brain</p> Signup and view all the answers

    Which step marks the initiation of neurulation during human development?

    <p>Formation of neural plate and neural folds</p> Signup and view all the answers

    What is a common outcome if there is a defect in neural tube closure?

    <p>Neural tube defects</p> Signup and view all the answers

    Which of the following is a possible differential diagnosis for a case with elevated maternal serum AFP during prenatal screening?

    <p>Spina bifida</p> Signup and view all the answers

    In the process of neurulation, what occurs after the formation of neural plate and neural folds?

    <p>Closure of neural folds to form the neural tube</p> Signup and view all the answers

    During neurulation, what may result from a defect in the closure of the neural tube?

    <p>Neural tube defects (NTDs)</p> Signup and view all the answers

    What happens if there is a failure in the migration of neuroectodermal cells during neural tube formation?

    <p>Absence of peristalsis in the aganglionic segment</p> Signup and view all the answers

    Which structure differentiates into the Peripheral Nervous System (PNS) and Autonomic Nervous System (ANS) during neurulation?

    <p>Cell masses formed by the neural crest</p> Signup and view all the answers

    In the context of neural tube formation, what is the likely outcome if there is a defect in the formation of the neurulation structure?

    <p>Lack of differentiation into CNS (brain &amp; spinal cord)</p> Signup and view all the answers

    What specific condition can result from the failure of the cranial neuropore to close during development?

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

    If the caudal neuropore does not close properly during development, what condition is likely to occur?

    <p>Spina bifida</p> Signup and view all the answers

    Which part of the neural tube will become the ependyma of the spinal cord?

    <p>Ependymal layer</p> Signup and view all the answers

    In neurulation, what is the specific outcome if there is a defect in the closure of the neural folds?

    <p>Spina bifida</p> Signup and view all the answers

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