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Question

What constitutes the central nervous system? How are the components of central nervous system protected? What are the constituents of peripheral nervous systems?


Solution

  • The constituents of central nervous system (CNS) are the brain and the spinal cord. The brain sits inside a fluid-filled balloon-like structure for shock absorption and this entire set-up is protected by hard bony skull. The spinal cord is protected by vertebral column, a hard, bony structure.
  • The peripheral nervous system (PNS) contains all the nerves in our body that lie outside of the spinal cord and brain.

Biology

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