The Nervus Vagus, also known as the "wandering nerve," is a complex network of nerves that originates in the brainstem and extends throughout the body. It is responsible for controlling several bodily functions such as heart rate, digestion, and breathing. While the term Nervus Vagus is commonly used in medical jargon, there are several synonyms for this nerve. These include the tenth cranial nerve, the pneumogastric nerve, and the vagus nerve. The nerve's name was derived from the word "vagus," which means "wandering" in Latin. Understanding the different synonyms for the Nervus Vagus is important in medical diagnosis and treatment.