Please note: This is a companion version & not the original book. Sample Book Insights:#1 The VN is responsible for managing the inflammatory system, which is the main inflammatory control system in the body. When inflammation levels are not kept in check, they can lead to many different health conditions.#2 The vagus nerve begins in the brainstem, stemming from four different nuclei. It controls specific component fibers of the nerve and sends sensory signals from the skin to the spinal trigeminal nucleus. It also sends direct signals to the organs it controls.#3 The vagus nerve extends out of the skull and into the upper neck area just behind the ear, between the internal jugular vein and internal carotid artery. It then passes between the external canal and tragus of each ear, and toward the skin of each ear.#4 The vagus nerve travels down the neck and reaches the thorax, where it sends branches to the lungs. The left vagus nerve sends a pulmonary branch to the anterior pulmonary plexus, and the right vagus nerve sends a pulmonary branch to the posterior pulmonary plexus.