Cochlear labyrinth - Revision history

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'''Cochlear Labyrinth'''

The '''[[cochlear labyrinth]]''' is a complex structure located within the [[inner ear]] that plays a crucial role in the process of [[hearing]]. It is named for its snail-like shape (cochlea is Latin for snail) and is filled with a fluid called [[endolymph]] which helps to transmit sound vibrations to the [[auditory nerve]].

==Structure==

The cochlear labyrinth is composed of two main parts: the [[bony labyrinth]] and the [[membranous labyrinth]]. The bony labyrinth is a series of channels within the [[temporal bone]] of the skull, while the membranous labyrinth is a series of sacs and ducts contained within the bony labyrinth.

The cochlear labyrinth is further divided into three sections: the [[scala vestibuli]], the [[scala media]], and the [[scala tympani]]. These sections are separated by two membranes: the [[Reissner's membrane]] and the [[basilar membrane]]. The scala media, also known as the cochlear duct, contains the [[organ of Corti]], which is the sensory organ of hearing.

==Function==

The primary function of the cochlear labyrinth is to convert sound vibrations into electrical signals that can be interpreted by the brain. This process begins when sound waves enter the [[ear canal]] and cause the [[tympanic membrane]] (or eardrum) to vibrate. These vibrations are then transmitted to the [[ossicles]], a series of three small bones in the middle ear, and from there to the [[oval window]], a membrane-covered opening that leads to the inner ear.

When the oval window vibrates, it causes the fluid in the cochlear labyrinth to move, which in turn causes the basilar membrane to vibrate. This movement stimulates the hair cells in the organ of Corti, which generate electrical signals that are sent to the brain via the auditory nerve.

==Clinical significance==

Damage or disease affecting the cochlear labyrinth can lead to a variety of hearing disorders, including [[sensorineural hearing loss]], [[Meniere's disease]], and [[tinnitus]]. Treatment options for these conditions can range from medication and hearing aids to cochlear implants, depending on the severity and cause of the hearing loss.

[[Category:Anatomy]]
[[Category:Hearing]]
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