Question

There are three phases in an action potential. they are __________.

Answer 1

The three stages of Action Potential are:
1. depolarization- Na+ channels open up inside of the membrane and becomes more positive than the RMP.
2. repolarization- The Na+ channels inactivating and K+ channels opening AP spike stops rising to which the membrane returns to RMP.
3. hyperpolarization- A few of the K+ channels remain open and the Na+ channels reset inside of membrane becomes more negative than RMP.

Hope this helps!
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