The interior of the neuron is at a potential of about _____ mV relative to the exterior.(a) -70(b) +70(c) -170(d) +170This question was addressed to me during an interview.Question is taken from Silver-Silver Chloride Electrodes in division Bioelectric Signal and Electrodes of Biomedical Instrumentation

The interior of the neuron is at a potential of about _____ mV relativ

1.	The interior of the neuron is at a potential of about _____ mV relative to the exterior.(a) -70(b) +70(c) -170(d) +170This question was addressed to me during an interview.Question is taken from Silver-Silver Chloride Electrodes in division Bioelectric Signal and Electrodes of Biomedical Instrumentation
Answer» Correct answer is (a) -70 Easiest explanation: The neurons, like the other cells of the body, are ELECTRICALLY polarized at rest. The interior of the neuron is at a potential of about -70 mV relative to the EXTERIOR. When a neuron is exposed to a stimulus above a certain threshold, a nerve impulse, SEEN as a change in membrane potential, is GENERATED which spreads in the cell RESULTING in the depolarization of the cell.

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