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which organ system includes brain and spinal cord which body system includes brain and spinal cord which body system includes brain and spinal cord and nerves which organ system includes brain spinal cord and neurons which organ system includes the brain and spinal cord and is responsible for processing information which body system contains the brain and spinal cord which human body system includes the brain and spinal cord 21 which organ system contains the brain and spinal cord which organ system includes the brain spinal cord and nerves which organ system do the brain and spinal cord belong to
