NEET PG DENTAL EXAM

Detailed explanation-1: -Repolarization typically results from the movement of positively charged K+ ions out of the cell. The repolarization phase of an action potential initially results in hyperpolarization, attainment of a membrane potential, termed the afterhyperpolarization, that is more negative than the resting potential.

Detailed explanation-2: -The movement of a cell’s membrane potential to a more positive value is referred to as depolarization. The change in membrane potential from a positive to a negative value is referred to as repolarization.

Detailed explanation-3: -Because there is a potential difference across the cell membrane, the membrane is said to be polarized. If the membrane potential becomes more positive than it is at the resting potential, the membrane is said to be depolarized.