The nerve fiber is said to be in a state of relaxation when it is in the resting phase. In this isolated state, the membrane of nerve fibers has the ability to relax. Listed below are the steps that take place during the process of polarization of the membrane of a nerve fiber:

1. Initially, when the damaged area of ​​the nerve fibers becomes fragmented, the number of K + ions outside the nerve fibers is large while the axon membrane has an excessive number of Na + ions.

2. When the membrane begins to turn into an enlarged state, it turns into more K + ions and does not get into the negatively charged proteins and Na + ions.

3. 2 K + ions are transferred to the axon by sodium-potassium pump by active flow while 3 Na + ions are transferred outside the axon.

4. The outer layer changes electropositive while the inner side of the membrane changes electronegative due to the movement of potassium and sodium ion causing the nerve fiber to separate.