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The interior of the neuron is at a potential of about _____ mV relative to the exterior.(a) -70(b) +70(c) -170(d) +170 |
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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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