Could another signal be sent down the length of the neuron cell if the sodium ions and potassium ions were not returned to their original positions?

Question

Biology

Kaitlin Lozano

3 May, 22:06

Could another signal be sent down the length of the neuron cell if the sodium ions and potassium ions were not returned to their original positions?

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Martha Cardenas · Answer 1

The answer is NO. When a nerve is depolarized it cannot transmit an impulse. It has to wait for the never cell to repolarize. This occurs when K + ions and Na + ions are pumped out of the cell by ATPase until the resting potential is achieved. In most nerve cells, the resting membrane potential is usually - 70 mV.