Human nervous system (CNS/PNS)

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  • Human nervous system
    • Central nervous system
      • brain
      • spine
      • the CNS passes messages to and from the brain and connects nerves to the PNS
    • Peripheral nervous system
      • autonomic nervous system
        • governs vital functions e.g breathing, heart rate, stress, sexual arousal (state of excitation)
        • symapthetic nervous system
          • stimulates fight or flight response
          • antagonistic
            • para sympathetic nervous system
              • maintains and conserves body energy and functions
        • para sympathetic nervous system
          • maintains and conserves body energy and functions
      • somatic nervous system
        • carries sensory information to and from the spinal cord, conscious movement

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