The nervous system controls the body. It helps people walk and speak, learn and remember. The brain, the spinal cord and nerves make up the nervous sytem. It carries message and they called signals. The signals tells the body parts what to do. Many signals start in the brain. The brain sends messages to the other parts of the body. The brain sends signals to the heart make it good. the brain is connected to the spinal cord.The other parts of the body send messages to the brain, too. The nervous system control that the body parts work together.
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