Olivocochlear system

Olivocochlear System

The Olivocochlear System is a component of the auditory system involved with the descending control of the cochlea. It is a part of the efferent nerves that originate in the superior olivary complex in the brainstem.

Anatomy

The olivocochlear system is divided into two subsystems: the lateral olivocochlear system (LOC) and the medial olivocochlear system (MOC). The LOC, also known as the crossed olivocochlear bundle, primarily innervates the inner hair cells (IHCs). The MOC, also known as the uncrossed olivocochlear bundle, primarily innervates the outer hair cells (OHCs).

File:Olivocochlear system.png

Diagram of the olivocochlear system

Function

The olivocochlear system plays a crucial role in the modulation of auditory information. It is involved in the enhancement of signal-to-noise ratio, protection of the cochlea from acoustic injury, and the facilitation of auditory attention and learning.

Clinical Significance

Damage to the olivocochlear system can result in auditory processing disorders, tinnitus, and hyperacusis. It may also contribute to age-related hearing loss.

See Also

• Auditory System
• Cochlea
• Superior Olivary Complex
• Inner Hair Cells
• Outer Hair Cells

External Links

• The PubMed Central
• Google Scholar

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