Question

78. The cell membrane of neuron main
intracellular conditions that differ fro
those of the extracellular environmen
Such difference in intra- and extracellular
conditions are critical to the function of the
nerve cell as the nerve cell membrane
resembles a charged capacitor. Assuming
the electric field (E) across a parallel-plate
capacitor is uniform and if membrane
thickness is 7 nm and potential difference
across the membrane is 60 mV, calculate
E of the membrane.
1. 6x 10° 0 m 2. 7x 10° Vm'
38.6 * 10° V m' 4. 6.6 * 10 m​

Answer 1

Answer:

Extracellular excitation of neurons is applied in studies of cultured networks and brain tissue, as well as in neuroprosthetics.

We elucidate its mechansim electrophysiological approach by comparing voltage-clamp and current-clamp recordings of individual neurons on an insulated planar electrode.

• Noninvasive stimulation of neurons from pedal ganglia of Lymnaea stagnalis is achieved by defined voltage ramps applied to an electrolyte/HfO2 / silicon capacitor.

Answer 2

Answer:

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