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Human Bio (Human Nervous System (The brain (CEREBRUM (80% of the brain,…

- - - - Cranial, spinal nerves. The PNS looks after nerve fibres
    - - Parasympathetic
        
        slows body processes. eg. if your sleeping your heart slows down
      - Sympathetic
        
        Speeds up body processes. eg. if your exercise your heart will speed up
  - - - Spinal cord & brain. This responds to stimuli
  - - - 80% of the brain, controls thoughts and body movement