The glossopharyngeal nerve (cranial nerve IX) is responsible for a number of sensory and motor functions associated with the tongue (glossa in Greek) and the pharynx, or throat. In this video, I discuss the anatomy and function of the glossopharyngeal nerve, as well as what symptoms can appear when the nerve is damaged.
The vestibulocochlear nerve (cranial nerve VIII) is responsible for carrying information to the brain from the vestibular system and the cochlea. The information from the cochlea deals with hearing, while the information from the vestibular system deals with vestibular sensations, which include information about head position and movement. These vestibular sensations enable us to keep our balance, stabilize our head and body during movement, and maintain posture. In this video, I discuss the anatomy and function of the vestibulocochlear nerve, as well as what symptoms can appear when the nerve is damaged.
The facial nerve (cranial nerve VII) has multiple functions, but is best known for its role in controlling the muscles of facial expression. In this video, I cover all of the functions of the facial nerve, as well as describe what can happen when the nerve is damaged.