relative refractory period

This phase is known as the relative refractory period.

During the relative refractory period, a new action potential can be elicited under the correct circumstances.

The return to the equilibrium resting potential marks the end of the relative refractory period.

The relative refractory period immediately follows the absolute.

The last half of the T wave is referred to as the relative refractory period (or vulnerable period).

The period during which action potentials are unusually difficult to evoke is called the relative refractory period.

The relative refractory period is the interval immediately following during which initiation of a second action potential is inhibited but not impossible.

Hyperpolarization by the delayed-rectifyer potassium channels causes a relative refractory period that makes it much more difficult to reach threshold.

In the classical sense, the cardiac refractory period is separated into an absolute refractory period and a relative refractory period.

Absolute refractory period corresponds to depolarisation and repolarisation, whereas relative refractory period corresponds to hyperpolarisation.

Because the density and subtypes of potassium channels may differ greatly between different types of neurons, the duration of the relative refractory period is highly variable.

Timing the shock to the R wave prevents the delivery of the shock during the vulnerable period (or relative refractory period) of the cardiac cycle, which could induce ventricular fibrillation.

Even after a sufficient number of sodium channels have transitioned back to their resting state, it frequently happens that a fraction of potassium channels remains open, making it difficult for the membrane potential to depolarize, and thereby giving rise to the relative refractory period.

Each action potential is followed by a refractory period, which can be divided into an absolute refractory period, during which it is impossible to evoke another action potential, and then a relative refractory period, during which a stronger-than-usual stimulus is required.