Anatomy and Connections - Auditory nerve fibers are either bipolar or unipolar. - The distal projection is called the peripheral process. - The proximal projection is called the axon. - Action potentials pass through the soma. - Both the peripheral process and the axon are myelinated.

Types of Neurons - Cochlear nerve fibers are classified as type I or type II. - Type I neurons innervate the inner hair cells. - Type II neurons innervate the outer hair cells. - Type I neurons are larger and myelinated. - Type II neurons are smaller and unmyelinated.

Cochlear Nuclear Complex - The cochlear nerve terminates in the cochlear nuclear complex. - The cochlear nucleus is located in the medulla of the brainstem. - The cochlear nucleus receives ipsilateral afferent input. - The complex consists of the dorsal cochlear nucleus, anteroventral cochlear nucleus, and posteroventral cochlear nucleus. - Each cochlear nucleus is tonotopically organised.

Related Concepts - Cochlear implant - Auditory Brainstem Response

References - Palmer, A. R. (1987). Physiology of the cochlear nerve and cochlear nucleus. - Spoendlin, H., & Schrott, A. (1989). Analysis of the human auditory nerve.