Problem: Respond to this post Cranial Nerve VIII is known as the Vestibulocochlear nerve due to the fact that it is formed via convergence of the cochlear nerve innervating the cochlea and the vestibular nerve innervating the semicircular ducts and vestibule deep in the inner ear. It is a mixed nerve, though it is primarily sensory in nature and functions in a pathway to produce hearing and equilibrium. Damage to this nerve or dysfunctional processing of information provided by this nerve can lead to deficits in our ability to hear or establish where we are in space. Injury to this neural circuit can be seen commonly following concussion due to a direct blow to the head or whiplash mechanism. This type of dysfunction can be observed through reporting of symptoms such as dizziness, nausea, poor balance, gait disturbances, poor visual focus and nystagmus. The awareness and ability to assess vestibular function through symptom checks and physical testing, as well as knowing how to treat or when and where to refer for proper rehabilitation following mTBI is imperative to restore full function in a timely manner. Differentiate between possible structural or functional causes of CN VIII dysfunction following concussion. Need Assignment Help?