The snail is the most critical element of the inner ear. It is divided into three chambers filled with liquid, called scale, that move spirally around the bone core. In the cochlea channel, there is the organ of Corti, who receives the sound. The Corti organ consists of supporting cells and many thousands of sensory cells. Each hair cell has up to 100 bristle hairs that translate mechanical movement into electrical sensory impulses that are transmitted directly to the brain. Read more on  Cochlea function.

Cochlea function

The function of the cochlea nerve begins when the sound vibrations hit the tympanic membrane. By hitting the bobbin, these vibrations have transformed into electrical signals that the cochlear nerve carries to the brain. The organ of Cochlea function will activate when vibrations sound waves travel through the ear and reach the oval window, a membrane at the entrance of the inner ear. When this membrane trembles, it makes wavelike motions in the fluid that fills the cochlea. These waves stimulate the hair cells to send messages to the brain.


In cochlea function, the inner ear is also responsible for helping maintain balance. Sensory shapes within the vestibule and semicircular canals handle this. The cochlea nerve can be with many different disorders and diseases. These diseases can damage the nerves in the auditory system, causing hearing loss. Treatment of this hearing loss usually requires the use of hearing aids, in the form of cochlear implants. Cochlear implants are a very effective treatment because they often manage to restore a significant part of the lost hearing.



Other cochlea function

In the vestibule, there are two bags, a gulag and a basket, each containing a sensory patch called a spot.

The spots monitor the location of the head in relation to the ground. Tiny hair protruding from sensory cells is embedded in a gelatinous mass. When the head is tilted, gravity pulls the mass and stimulates the hair cells.

Each semicircular channel contains an ampoule or bulge that contains a receptor structure called crista ampullaris.

Crista ampullaris reacts to rotational movements. Her hair cells embedded in a gel-like mass in the shape of a cone, it is cupula.

When the liquid in the hemispherical channels rotates during movement, it displaces the cup that stimulates the hair cells. Our sense of balance is based on the sensual structures of the inner ear, as well as on the visual inputs and information received from receptors in the body, especially those around the joints.



Meniere’s disease is a unique, progressive disease of the inner ear. The complex manifestation presents diagnostic challenges. Cochlear symptoms often occur before dizziness and usually ignored. The aim of this study was to analyze the characteristics of cochlear symptoms and functions associated with Meniere’s disease in order to investigate the development of this disorder.


A retrospective study involved one hundred and fifteen patients who diagnosed with a single unilateral Meniere disease at the Hearing and Vestibular Clinic of the Beijing Otolaryngology Hospital from August 2013. Until November 2015, preliminary symptoms, duration from the initial symptoms to diagnosis, hearing thresholds, audiogram patterns, and caloric results collected and analyzed for each patient. Data analyzed using SPSS 13.0 statistical software using Spearman’s correlation, Kruskal-Wallis H test, Chi-square test, and Fisher’s exact test.