Fetal Brain Development Stages Quiz
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Questions and Answers

What is the correct order of the stages of brain development in the fetus?

  • Apoptosis, proliferation, migration, neurulation
  • Apoptosis, myelination, differentiation, axon growth
  • Neurulation, apoptosis, proliferation, migration
  • Neurulation, proliferation, migration, differentiation (correct)
  • Which structure eventually forms the ventricular system of the central nervous system (CNS) during development?

  • Thylamus
  • Telencephalic
  • Diencephalon
  • Neural tube lumen (correct)
  • What is the role of radial glial fibers in brain development?

  • Secrete cerebrospinal fluid
  • Develop into astrocytes
  • Act as a scaffold for neuron migration (correct)
  • Maintain myelin sheath
  • Which cell type is more numerous than neurons in the brain?

    <p>Glial cells</p> Signup and view all the answers

    What is the function of microglia in the brain?

    <p>Phagocytosis and response to injury</p> Signup and view all the answers

    Which cells line the ventricles in the brain and create cerebrospinal fluid?

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

    What is the age of viability for fetal lung development?

    <p>22 weeks</p> Signup and view all the answers

    During which phase of fetal lung development does the rapid growth and proliferation of the peripheral airways occur?

    <p>Pseudoglandular phase</p> Signup and view all the answers

    Which type of alveolar epithelial cells are responsible for the synthesis, storage, and secretion of surfactant in the lungs?

    <p>Type 2 alveolar epithelial cells</p> Signup and view all the answers

    What is the primary function of surfactant in the lungs?

    <p>Increase lung tissue compliance</p> Signup and view all the answers

    How are fetal lung liquid and its unique ionic composition important for lung development?

    <p>They provide a distending force for normal lung development</p> Signup and view all the answers

    Which phase of fetal lung development involves the formation of blood-air barrier with the thinning of parenchymal mesenchyme?

    <p>Saccular phase</p> Signup and view all the answers

    What is the main role of type 1 alveolar epithelial cells in the lungs?

    <p>Gas exchange</p> Signup and view all the answers

    How does the insult encountered during pregnancy affect fetal lung development?

    <p>It affects lung growth and risk of diseases later in life</p> Signup and view all the answers

    What is the proportion change of type 1 and type 2 alveolar epithelial cells that occurs towards mid gestation in fetal lung development?

    <p>Rapid change from equal numbers to mostly type 2 cells</p> Signup and view all the answers

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