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  2. Quick Facts: Brain, Spinal Cord, and Nerve Disorders/
  3. Biology of the Nervous System/
    Biology of the Nervous System
    • Overview of the Nervous System
      • What is the nervous system?
      • How does your nervous system work?
      • What can go wrong with your nervous system?
      • How does age affect the nervous system?
    • The Brain
      • What is the brain?
        • What are the parts of the brain?
      • How does the brain work?
      • What can go wrong with the brain?
    • The Spinal Cord
      • What is the spinal cord?
      • How does the spinal cord work?
        • What are spinal nerves?
      • What can go wrong with the spinal cord?
    • The Nerves
      • What are nerves?
      • How do nerves work?
      • What can go wrong with nerves?
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