Final answer:
Outer hair cells of the organ of Corti are not innervated by sensory neurons, and they do not relay sound information via the vestibulocochlear nerve. They are involved in fine-tuning sound waves.
Step-by-step explanation:
The outer hair cells of the organ of Corti are innervated by motor neurons, not sensory neurons. They do not relay sound information by way of the vestibulocochlear nerve. Instead, the outer hair cells function to fine-tune incoming sound waves by changing their length in response to sound.