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Cochlear hydrops (or cochlear Meniere's or cochlear endolymphatic hydrops) is a condition of the inner ear involving a pathological increase of fluid affecting the cochlea. This results in swelling that can lead to hearing loss or changes in hearing perception. It is a form of endolymphatic hydrops and related to Ménière's disease. Cochlear ...
Endolymphatic hydrops is a disorder of the inner ear. It consists of an excessive build-up of the endolymph fluid, which fills the hearing and balance structures of the inner ear. Endolymph fluid, which is partly regulated by the endolymph sac, flows through the inner ear and is critical to the function of all sensory cells in the inner ear.
Hearing: Cochlear duct: fluid waves in the endolymph of the cochlear duct stimulate the receptor cells, which in turn translate their movement into nerve impulses that the brain perceives as sound. Balance: Semicircular canals: angular acceleration of the endolymph in the semicircular canals stimulate the vestibular receptors of the endolymph.
Perilymph and endolymph have unique ionic compositions suited to their functions in regulating electrochemical impulses of hair cells necessary for hearing. The electric potential of endolymph is ~80-90 mV more positive than perilymph due to a higher concentration of potassium cations (K +) in endolymph and higher sodium (Na +) in perilymph. [4]
[3] [5] The use of tympanostomy tubes (ventilation tubes) to improve vertigo and hearing in people with Ménière's disease is not supported by definitive evidence. [5] Ménière's disease was identified in the early 1800s by Prosper Menière. [5] It affects between 0.3 and 1.9 per 1,000 people. [1]
[5] The summating potential (SP), first described by Tasaki et al. in 1954, represents the direct current (DC) response of the hair cells as they move in conjunction with the basilar membrane, [6] as well as the DC response from dendritic and axonal potentials of the auditory nerve. [7] The SP is the stimulus-related potential of the cochlea.
The spiral ligament is a coiled thickening in the fibrous lining of the cochlear wall. It attaches the membranous cochlear duct to the bony spiral canal. The cochlea is a portion of the inner ear that looks like a snail shell (cochlea is Greek for snail). [5] The cochlea receives sound in the form of vibrations, which cause the stereocilia to move.
The film tells the story of Uda, a deaf drug dealer who lives a life of crime so he can afford his Cochlear implants. His life, however, changes when he meets Dara, a rebellious schoolgirl who yearns to be free from her father's watching eyes. This sparks a relationship always on the brink in a world riddled with violence, sex and drugs.