Vestibular calyx, potassium:Kalium in Calyx Regnat
نویسندگان
چکیده
منابع مشابه
Zonal variations in K+ currents in vestibular crista calyx terminals.
We developed a rodent crista slice to investigate regional variations in electrophysiological properties of vestibular afferent terminals. Thin transverse slices of the gerbil crista ampullaris were made and electrical properties of calyx terminals in central zones (CZ) and peripheral zones (PZ) compared with whole cell patch clamp. Spontaneous action potential firing was observed in 25% of cur...
متن کاملMolecular microdomains in a sensory terminal, the vestibular calyx ending.
Many primary vestibular afferents form large cup-shaped postsynaptic terminals (calyces) that envelope the basolateral surfaces of type I hair cells. The calyceal terminals both respond to glutamate released from ribbon synapses in the type I cells and initiate spikes that propagate to the afferent's central terminals in the brainstem. The combination of synaptic and spike initiation functions ...
متن کاملVoltage-dependent currents in isolated vestibular afferent calyx terminals.
Na(+) currents were studied by whole cell patch clamp of chalice-shaped afferent terminals attached to type I hair cells isolated from the gerbil semicircular canal and utricle. Outward K(+) currents were blocked with intracellular Cs(+) or with extracellularly applied 20 microM linopirdine and 2.5 mM 4-aminopyridine (4-AP). With K(+) currents blocked, inward currents activated and inactivated ...
متن کاملKv1 channels and neural processing in vestibular calyx afferents
Potassium-selective ion channels are important for accurate transmission of signals from auditory and vestibular sensory end organs to their targets in the central nervous system. During different gravity conditions, astronauts experience altered input signals from the peripheral vestibular system resulting in sensorimotor dysfunction. Adaptation to altered sensory input occurs, but it is not e...
متن کاملZonal variations in K + currents in vestibular crista calyx 1 terminals
26 We developed a rodent crista slice to investigate regional variations in 27 electrophysiological properties of vestibular afferent terminals. Thin, transverse slices of the 28 gerbil crista ampullaris were made and electrical properties of calyx terminals in central zones 29 (CZ) and peripheral zones (PZ) compared using whole cell patch clamp. Spontaneous action 30 potential firing was obser...
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ژورنال
عنوان ژورنال: The Journal of Physiology
سال: 2017
ISSN: 0022-3751
DOI: 10.1113/jp273432