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D
The nervous system
8.1 Organising the nervous system and understanding the human brain

Organising the nervous system
There are a number of elements to the nervous system. The central nervous system (CNS) comprises the brain and the
spinal cord, and is made of white matter and grey matter. The…

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but fine motor control of muscular movements requires more nonconscious thought. These coordinated motor responses
require the involvement of the cerebellum (which lies just beneath the occipital lobe of the cerebrum). Nerves from the
cerebellum carry impulses to the motor areas of the cortex, so that motor output to the…

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