basilar membrane


Also found in: Dictionary, Thesaurus, Medical, Acronyms, Wikipedia.
Related to basilar membrane: organ of Corti

basilar membrane

[′bas·ə·lər ′mem‚brān]
(anatomy)
A membrane of the mammalian inner ear supporting the organ of Corti and separating two cochlear channels, the scala media and scala tympani.
References in periodicals archive ?
With place coding, as illustrated in Figure 4, sound frequencies are filtered by the basilar membrane, with the maximal displacement for the high frequencies in the basal turn moving to the apical turn for low frequencies.
Cochlear disease and anatomical variations made the precise placement of the electrode difficult under the basilar membrane for the required localized stimulation.
Trauma could occur 7 to 13 mm from the round window, where the outer cochlear wall is splayed, and this directed the array at the basilar membrane.
For example the array of resonators has better resolution in a frequency range but the membrane has any behaviour closer to the real basilar membrane (for example similar running of travelling waves and phase characteristics).
This damage ranges from relatively minor displacement of the basilar membrane to severe fracture of the osseous spiral lamina, tearing of the basilar membrane or spiral ligament, and deviation of the electrode path from its intended location in the ST to the overlying scala media and/or scala vestibuli.
The implications of insertion trauma for subjects with residual hearing may be even more serious than for profoundly deaf CI users, since damage to the organ of Corti could severely affect the transmission and distribution of acoustic vibration along the basilar membrane.
nonpolymerized actin, alpha-active myosin, fibrin, and tubulin), these cells have the capacity to move the tectorial and basilar membranes to a frequency of 30 kHz.