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For each of Questions 7 to 11, select one answer choice unless otherwise instructed.
Questions 7 through 8 are based on the following reading passage.
Neurobiologists have never questioned that axon malfunction plays a role in neurological disorders, but the nature of the relationship has been a matter of speculation. George Bartzokis’s neurological research at UCLA suggests that many previously poorly understood disorders such as Alzheimer’s disease may be explained by examining the role of the chemical compound myelin.
Myelin is produced by oligodendrocyte cells as a protective sheathing for axons within the nervous system. As humans mature and their neurochemistries grow more complex, oligodendrocyte cells produce increasing amounts of myelin to protect the byzantine circuitry inside our nervous systems. An apt comparison may be to the plastic insulation around copper wires. Bereft of myelin, certain areas of the brain may be left vulnerable to short circuiting, resulting in such disorders as ADHD, schizophrenia, and autism.
For each of Questions 7 to 11, select one answer choice unless otherwise instructed.
Questions 7 through 8 are based on the following reading passage.
Neurobiologists have never questioned that axon malfunction plays a role in neurological disorders, but the nature of the relationship has been a matter of speculation. George Bartzokis’s neurological research at UCLA suggests that many previously poorly understood disorders such as Alzheimer’s disease may be explained by examining the role of the chemical compound myelin.
Myelin is produced by oligodendrocyte cells as a protective sheathing for axons within the nervous system. As humans mature and their neurochemistries grow more complex, oligodendrocyte cells produce increasing amounts of myelin to protect the byzantine circuitry inside our nervous systems. An apt comparison may be to the plastic insulation around copper wires. Bereft of myelin, certain areas of the brain may be left vulnerable to short circuiting, resulting in such disorders as ADHD, schizophrenia, and autism.
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