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CHAPTER 4: Development of the Central Nervous System
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Which embryonic layer develops into the nervous system?
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What are the functional consequences of gyrification?
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A. It allows normal brain growth in limited space during early fetal period.
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B. Inadequate gyrification may cause CNS dysfunction after birth such as schizophrenia.
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C. Excess gyrification may lead to undersized gyri and postnatal complications.
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What do the vesicles develop into later?
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A. Forebrain, midbrain, spinal cord
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B. Forebrain, midbrain, cranium
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C. Spinal cord, midbrain, progenitor of hindbrain
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D. Forebrain, midbrain, progenitor of hindbrain
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D. Forebrain, midbrain, progenitor of hindbrain
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Consequences of improper neuropore closure include all of the following except:
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What process creates the cauda equina?
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A. Growth of somites delays spinal cord development.
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B. Growth of the vertebral column occurs more quickly than the spinal cord.
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C. Growth of the spinal nerves is delayed due to neurulation.
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D. Growth of the medulla oblongata delays spinal cord development.
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B. Growth of the vertebral column occurs more quickly than the spinal cord.
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In the brainstem, the sulcus limitans separates motor nuclei, located________, from sensory nuclei, which are located_____.
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B. ventromedially, dorsolaterally
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D. dorsolaterally, ventromedially
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B. ventromedially, dorsolaterally
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Which statement regarding synaptogenesis and neural pruning is false?
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