====== Vagus Nerve ======
The **vagus nerve** is a pair of nerves (left vagus and right vagus) referenced together as a [[cranial nerve]] structure (**CN X**) that is the longest two nerves of the [[autonomic nervous system]]. The vagus nerve interfaces with numerous important systems of the human body including the [[parasympathetic]] control of the [[heart]], [[lungs]], and the [[digestic tract]].