LIVING COCHLEAR HAIR CELLS
نویسندگان
چکیده
منابع مشابه
Functional assembly of mammalian cochlear hair cells
Hair cells in the mammalian inner ear convert sound into electrical signals that are relayed to the nervous system by the chemical neurotransmitter glutamate. Electrical information encoding sound is then passed through the central nervous system to the higher auditory centres in the brain, where it is used to construct a temporally and spatially accurate representation of the auditory landscap...
متن کاملCochlear amplification, outer hair cells and prestin.
Mechanical amplification of acoustic signals is apparently a common feature of vertebrate auditory organs. In non-mammalian vertebrates amplification is produced by stereociliary processes, related to the mechanotransducer channel complex and probably to the phenomenon of fast adaptation. The extended frequency range of the mammalian cochlea has probably co-evolved with a novel hair cell type, ...
متن کاملResponse characteristics of mammalian cochlear hair cells.
Intracellular recordings were made from the low frequency region (third turn) of the guinea pig cochlea. Response characteristics are compared to gross potentials obtained from the organ of Corti fluid space. Inner hair cells (IHCs) possess relatively low (median, -32 mV) initial membrane potentials, whereas that of outer hair cells (OHCs) is higher (median, -53.5 mV). In response to tone burst...
متن کاملThe afferent synapse of cochlear hair cells.
Mechanosensory hair cells of the cochlea must serve as both transducers and presynaptic terminals, precisely releasing neurotransmitter to encode acoustic signals for the postsynaptic afferent neuron. Remarkably, each inner hair cell serves as the sole input for 10-30 individual afferent neurons, which requires extraordinary precision and reliability from the synaptic ribbons that marshal vesic...
متن کاملCochlear Hair Cells and Supporting Cells in Organ of Corti
ered essential for establishment of high K+ concentration in endolymph and the endocochlear potential (36, 109). The concept of the K+ circulation was originally proposed from observations that 1) radioactive K+ applied to perilymph could be detected in endolymph much more efficiently than when perfused to blood plasma (40, 84) and 2) perilymphatic but not vascular perfusion of K+-free solution...
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ژورنال
عنوان ژورنال: Nippon Jibiinkoka Gakkai Kaiho
سال: 1989
ISSN: 0030-6622,1883-0854
DOI: 10.3950/jibiinkoka.92.10sokai_1767