What are the two types of refractory periods?

There are two types of refractory periods; the absolute refractory period, which corresponds to depolarization and repolarization, and the relative refractory period, which corresponds to hyperpolarization.

What is the refractory period absolute or relative for?

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

What is the major difference between effective absolute refractory period ERP Arp and relative refractory period RRP )?

The total refractory period is comprised of the (1) absolute refractory period (ARP) or effective refractory period (ERP), which is the period during which an electrical stimulus will not elicit an AP because the membrane is not sufficiently repolarized and sodium channels have not completely recovered; (2) relative …

Why is it called relative refractory period?

In other words, because the membrane potential inside the axon becomes increasingly negative relative to the outside of the membrane, a stronger stimulus will be required to reach the threshold voltage, and thus, initiate another action potential. This period is the relative refractory period.

Where is the absolute refractory period?

The period from the initiation of the action potential to immediately after the peak is referred to as the absolute refractory period (ARP) (see Figs. 1 and 2). This is the time during which another stimulus given to the neuron (no matter how strong) will not lead to a second action potential.

Which answer best describes the relative refractory period in the neuron?

Which answer best describes the relative refractory period in the neuron? The resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

What is ARP and RRP?

In Address Resolution Protocol (ARP), Receiver’s MAC address is fetched. Through ARP, (32-bit) IP address mapped into (48-bit) MAC address. Whereas, In Reverse Address Resolution Protocol (RARP), IP address is fetched through server. Through RARP, (48-bit) MAC address of 48 bits mapped into (32-bit) IP address.

What is the relative refractory period quizlet?

Relative Refractory Period. Period in which ONLY exceptionally STRONG stimulus could stimulate an action potential (AP) Returned, Resting State, Open, Repolarization.

What is the absolute refractory period quizlet?

Absolute Refractory period. The period from the initiation of the action potential to immediately after the peak is referred to as the absolute refractory period (ARP) This is the time during which another stimulus given to the neuron will not lead to a second action potential.

Why is it called the relative refractory period?

As voltage-gated Na+ channels transition from the inactivated to the closed state (i.e., they become capable of being activated), the membrane becomes capable of supporting a 2nd action potential – this period is called the RELATIVE REFRACTORY PERIOD.

What is the relative refractory period caused by?

The refractory periods are due to the inactivation property of voltage-gated sodium channels and the lag of potassium channels in closing.