What is relative refractory period?
Medical Definition of relative refractory period : the period shortly after the firing of a nerve fiber when partial repolarization has occurred and a greater than normal stimulus can stimulate a second response — compare absolute refractory period.
What is the difference between absolute refractory and relative refractory period?
The main difference between absolute and relative refractory period is that absolute refractory period is the period of time during which a second action potential absolutely cannot be initiated whereas relative refractory period is the interval immediately after the absolute refractory period.
What is the relative refractory period caused by?
voltage-gated sodium channels
The refractory periods are due to the inactivation property of voltage-gated sodium channels and the lag of potassium channels in closing.
Which statement best describes the relative refractory period?
Which of the following statements correctly describes the relative refractory period? It is the period in which even a weak impulse can cause another depolarization.
What is ARP and RRP?
The absolute refractory period (ARP) was defined as the shortest interstimulus interval at which a response to the second stimulus could be recorded. The relative refractory period (RRP) was defined as the interstimulus interval at which the responses to the first and to the second stimulus have equal latencies.
What do QRS complex represent?
A combination of the Q wave, R wave and S wave, the “QRS complex” represents ventricular depolarization.
What is ERP and 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 …
What is ARP and RARP explain?
ARP stands for Address Resolution Protocol. Whereas RARP stands for Reverse Address Resolution Protocol. 2. Through ARP, (32-bit) IP address mapped into (48-bit) MAC address. Whereas through RARP, (48-bit) MAC address of 48 bits mapped into (32-bit) IP address.
What governs the absolute and relative refractory periods?
Absolute: Is the period of time during which a second action potential ABSOLUTELY cannot be initiated, no matter how large the applied stimulus is. Relative: Is the interval immediately following the Absolute Refractory Period during which initiation of a second action potential is INHIBITED, but not impossible.