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Topics | Brain and Nervous System | Healthy Nervous System | Functions of Nerves | What does the vagus nerve do? The vagus nerve provides a speedy line of information to the brain from the gut, where battles with bacteria and viruses are continually raging. Knowledge of the vagus's role was a mystery until very recently, but we now know that you can learn about your body from your vagus. The longest nerve directly from the brain, the vagus sends messages to and receives messages from your gut and every other organ in your body. Because 85 percent of this huge nerve carries information back to the brain, it's the main mechanism by which your brain audits your body. The remaining 15 percent takes information from your brain to your body.
The vagus nerve connects our brainstem to the body, due to which the brain receives, controls and monitor several body functions automatically. The vagus nerve forms a sort of electrical circuit while linking our heart, lungs, and gut to the brain-base.t gets this name because the nerve wanders from the brain stem via various organs in the neck, thorax and abdomen. The vagus nerve is two nerves that go through the brain stem and enter different parts of the body such as the heart and the stomach.