Explanation: malnutrition is essentially the lack of nourishment. An imbalance (less or more) of one or more nutrients certainly has the capacity of causing health issues. And as such it includes deficiencies, overabundance and imbalances.
The cochlear branch passes on the information from the cochlea of the ear to the brain. Another portion of the same is the vestibulocochlear nerve. It carries the spatial orientation information to the brain. These are also known as acoustic, or auditory nerves.