The (/ˈveɪɡəs/ vay), also called the pneumogastric nerve, is known as the tenth cranial nerve or simply CNX. The cranial nerves exist as pairs and there are twelve such pairs, however these are normally referred to in the singular. Course and distribution of the glossopharyngeal, vagus, and accessory nerves.
Fig. 14: Glossopharyngeal nerve (GSPn). View of the pharynx from behinh. On the right, the internal carotid artery, the internal jugular vein and their relationship with the GSPn and the vagus nerve are shown. On the left, the artery, the vein and the vagus nerve have been removed and the relationship of the GSPn with the stylopharyngeus muscle is represented. References: Dept. Of Radiology, José Maria Morales Meseguer, Hospital General Universitario - Murcia/ES