What is the role of the sympathetic nervous system?
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Dr. Bill Salt answered:The sympathetic branch of your autonomic nervous system originates in the spinal cord. It goes into action to prepare the body for physical or mental activity. In response to a stressor, the sympathetic nervous system orchestrates what you familiarly call the fight-or-flight response. It increases muscle blood flow and tension, dilates pupils, accelerates heart rate and respiration, and increases perspiration and arterial blood pressure. To conserve and concentrate energy, it slows down digestive activity.
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The sympathetic branch of your autonomic nervous system originates in the spinal cord. It goes into action to prepare the body for physical or mental activity. In response to a stressor, the sympathetic nervous system orchestrates... More
