![]() The membranous labyrinth is filled with a fluid called endolymph that, in the balance organs, stimulates receptors as the body moves. It has two sections: the bony labyrinth and the membranous labyrinth. The labyrinth contains the organs of balance (the semicircular canals and otolithic organs) and of hearing (the cochlea). The symptoms of Ménière’s disease are caused by the buildup of fluid in the compartments of the inner ear, called the labyrinth. Inside their walls (bony labyrinth) are thin, pliable tubes and sacs (membranous labyrinth) filled with endolymph. The labyrinth is composed of the semicircular canals, the otolithic organs (i.e., utricle and saccule), and the cochlea. What causes the symptoms of Ménière’s disease? The National Institute on Deafness and Other Communication Disorders (NIDCD) estimates that approximately 615,000 individuals in the United States are currently diagnosed with Ménière’s disease and that 45,500 cases are newly diagnosed each year. Ménière’s disease can develop at any age, but it is more likely to happen to adults between 40 and 60 years of age. ![]() These episodes are called “drop attacks.” Some people with Ménière’s disease have vertigo so extreme that they lose their balance and fall. Others may experience many attacks closer together over a number of days. Some people will have single attacks of dizziness separated by long periods of time. Ménière’s disease usually affects only one ear.Īttacks of dizziness may come on suddenly or after a short period of tinnitus or muffled hearing. Ménière’s disease is a disorder of the inner ear that causes severe dizziness (vertigo), ringing in the ears (tinnitus), hearing loss, and a feeling of fullness or congestion in the ear. Congressional Testimony and the NIDCD Budget.Research Training in NIDCD Laboratories (Intramural).Types of Research Training Funding Opportunities.About NIDCD's Research Training Program.Scientific Workshop and Meeting Reports.Building a Diverse Scientific Workforce.
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