Tectorial membrane
(Redirected from Tectorial membrane (cochlea))
Tectorial membrane is a structure in the inner ear that plays a crucial role in the process of hearing. It is one of the two main structures that make up the organ of Corti, the sensory organ of hearing. The tectorial membrane is located above the hair cells of the organ of Corti and is involved in the transduction of sound vibrations into electrical signals.
Structure
The tectorial membrane is a gelatinous structure that is composed of a matrix of collagen and glycoproteins. It is attached at one end to the spiral limbus, a structure that separates the scala media and scala tympani in the cochlea. The other end of the tectorial membrane extends over the hair cells of the organ of Corti.
Function
The tectorial membrane plays a crucial role in the process of hearing. When sound vibrations enter the inner ear, they cause the basilar membrane to vibrate. This, in turn, causes the hair cells of the organ of Corti to move. The movement of the hair cells causes them to come into contact with the tectorial membrane, which leads to the opening of ion channels in the hair cells. This results in the generation of an electrical signal that is transmitted to the brain via the auditory nerve.
Clinical significance
Damage to the tectorial membrane can result in hearing loss. This can occur as a result of aging, exposure to loud noise, or certain medical conditions. Treatment for hearing loss related to damage to the tectorial membrane typically involves the use of hearing aids or cochlear implants.
See also
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