The anatomical basis for transcutaneous auricular vagus nerve stimulation. Citation: (Butt 2019)

Our metabolic functions (e.g. organs, glands, involuntary muscles) are influenced by the autonomic nervous system (ANS) via sympathetic and parasympathetic divisions. The vagus nerve, the 10th longest of the cranial nerves, is a major component of the parasympathetic nervous system and serves to maintain homeostasis providing bidirectional communication between the body and brain.  The neuroatanomy of the auricular branch of the vagus nerve (ABVN) offers insight for an understanding of the ef...