absolute refractory period

During the absolute refractory period, a new action potential cannot be elicited.

This inability to induce another action potential is known as the absolute refractory period.

An absolute refractory period was reached when intervals were about 10 ms apart.

The period during which no new action potential can be fired is called the absolute refractory period.

The absolute refractory period coincides with nearly the entire duration of the action potential.

The absolute refractory period is the interval during which a second action potential absolutely cannot be initiated, no matter how large a stimulus is applied.

The period when the majority of sodium channels remain in the inactive state is the absolute refractory period.

Repolarization of the membrane potential continues, resulting in an undershoot phase or absolute refractory period.

Neurons, however, exhibit a fundamental (biophysical) history dependence by way of its relative and absolute refractory periods.

Although it limits the frequency of firing, the absolute refractory period ensures that the action potential moves in only one direction along an axon.

Proportion of cells in refractory period (absolute refractory period )

The absolute refractory period is largely responsible for the unidirectional propagation of action potentials along axons.

This period is also termed the absolute refractory period (ARP).

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

There, in me cleft between the pre- and post-synaptic membranes, it had somehow decreased the absolute refractory period while acting as a highly efficient transmitter substance.

The interval from the beginning of the QRS complex to the apex of the T wave is referred to as the absolute refractory period.

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

At the molecular level, this absolute refractory period corresponds to the time required for the voltage-activated sodium channels to recover from inactivation, i.e., to return to their closed state.

In both muscle types, after a delay (the absolute refractory period), potassium channels reopen and the resulting flow of K out of the cell causes repolarization to the resting state.

When closing after an action potential, sodium channels enter in an "inactivated" state, in which they cannot be opened regardless of the membrane potential-this gives rise to the absolute refractory period.

The muscle action potential lasts roughly 2-4 ms, the absolute refractory period is roughly 1-3 ms, and the conduction velocity along the muscle is roughly 5 m/s.

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.

For treatment of deep seated tumors in relative vicinity of the heart, pulses are synchronized with absolute refractory period of the heart of each heartbeat to minimize the probability of interaction of pulses with the heart function [28, http://www.clinicaltrials.gov/ct2/show/NCT01264952].

Class I agents are sodium (Na) channel blockers (which slow conduction by blocking the Na+ channel) and are divided into 3 subclasses a, b and c. Class Ia slows phase 0 depolarization in the ventricles and increases the absolute refractory period.