1) What is the main function of the nervous system? 2) What is the brain's main job? 3) What is the spinal cord and what does it do? 4) How does the nervous system send messages throughout the body? 5) What is a reflex and can you provide an example? 6) How does the nervous system help us move voluntarily? 7) What are neurotransmitters and why are they important? 8) What are some ways to keep our nervous system healthy?

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