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What would you do if someone at work suffered an injury to his or her head, neck, back, or spine? When a person is injured in one or more of these areas, you have to take special care, even when trying to help him or her. If you don't, you can cause even more damage. The reasons that injuries to the head, neck, back, and spine must be treated with extra care is that they may involve the brain or the spinal column, which encases the long cord of nerves that runs down the back. These are critical to life and normal life functions and they're also easy to injure. You'll learn more about this in this course.