https://www.sciencedirect.com/topics/medicine-and-dentistry/olivocochlear-system
Hair cell receptors within the auditory, vestibular, and lateral line systems receive an abundant efferent innervation from the central nervous system. This characteristic sets them apart from receptors in other sensory modalities. The auditory receptors receive innervation from the olivocochlear (OC) system, named because of its origin in the brain stem’s superior olivary complex and termination in the cochlea (inner ear) (Figure 1). Two separate systems of OC neurons exist. Lateral olivocochlear (LOC) neurons originate in and near the lateral superior olive and project to auditory-nerve dendrites beneath the inner hair cells. Medial olivocochlear (MOC) neurons originate in the more medial parts of the complex and project to outer hair cells (Figure 1). LOC neurons are located predominantly on the same side of the brain as the cochlea that they innervate, whereas MOC neurons are distributed bilaterally
Pictures
https://www.google.com/url?sa=i&url=https%3A%2F%2Fwww.sciencedirect.com%2Fscience%2Farticle%2Fpii%2FS0378595521000411&psig=AOvVaw0p6I4cGGBIIa3liN6LMTzE&ust=1727786453480000&source=images&cd=vfe&opi=89978449&ved=0CBEQjRxqFwoTCLDNnojZ6ogDFQAAAAAdAAAAABAE