During resting potential, the axonal membrane is polarised, indicate the movement of +ve and –ve ions leading to polarisation diagrammatically.

Question

Philoid · Accepted Answer

• In response to a signal, the soma end of the axon becomes depolarized.

• The depolarization spreads down the axon. Meanwhile, the first part of the membrane repolarizes. Because positive channels are inactivated and additional positive channels have opened, the membrane cannot depolarize again.

• The action potential continues to travel down to the axon.