0
What else can I help you with?
Define the period of repolarization when only a strong stimulus will elicit an action potential?
The period of relative refractory period is the time after an action potential during which a strong stimulus is required to generate a new action potential. This is because the membrane potential is hyperpolarized, making it more difficult to reach the threshold for firing another action potential.
What two events render a sement of an axon temporarily insensitive to another stimulus?
The two events that render a segment of an axon temporarily insensitive to another stimulus are the absolute refractory period and the relative refractory period. During the absolute refractory period, the axon cannot respond to any stimulus regardless of strength, while during the relative refractory period, the axon can only respond to a stronger-than-normal stimulus.
What happens during the refractory period?
The voltage-gated Na+ channels get deactivated, thus the sodium ions cannot diffuse into the cell and cause depolarisation and this also provides time for the membrane to prepare for its second action potential.
Which term refers to the period whereby no neutral impulse can be generated?
The term that refers to the period during which no neutral impulse can be generated is the "refractory period." This phase occurs after an action potential, during which the neuron is temporarily unresponsive to further stimulation. It is divided into the absolute refractory period, where no new action potential can be initiated, and the relative refractory period, where a stronger-than-usual stimulus is required to elicit a response.
During the absolute refractory period an impulse may be triggered by a stimulus of high intensity?
During the absolute refractory period, the neuron is incapable of generating another action potential regardless of the stimulus intensity, as the voltage-gated sodium channels are inactivated. Once these channels have reset during the relative refractory period, a strong enough stimulus can trigger an action potential again.
What is the relationship between the relative refractory period and the absolute refractory period in terms of neuronal excitability?
The relative refractory period is the time when a neuron can respond to a stronger stimulus, while the absolute refractory period is when a neuron cannot respond at all. The relative refractory period follows the absolute refractory period and allows for increased neuronal excitability.
2 Define refractory period and differentiate between absolute and relative refractory periods?
refractory period is the interval between action potential , the absolute refractory period is the period in which second action potential can not be initiated but in relative refractory period the second action potential can be initiated by the more strong stimulus.
What is the relationship between the absolute and relative refractory periods during the action potential process?
During the action potential process, the absolute refractory period is when the neuron cannot respond to any stimulus, while the relative refractory period is when it can respond to a stronger stimulus. The absolute refractory period comes before the relative refractory period in the action potential process.
What is the difference between the absolute refractory period and the relative refractory period in terms of neuronal excitability?
The absolute refractory period is a time when a neuron cannot respond to any stimulus, no matter how strong. The relative refractory period is a time when a neuron can respond to a stronger stimulus than usual.
What is the difference between the effective refractory period and the relative refractory period?
-The effective refractory period is the time in which the cell is incapable of responding to a second stimulus between the phases of 0-3.5, while the relative refractory period is the time in which the cell is making preparations to receive stimulus between phase 3.5-4.
During which period can a second action potential be initiated by a larger than normal stimulus?
The period following the absolute refractory period is where a second action potential can be initiated by a larger than normal stimulus. This phase is known as the relative refractory period.
What is the cause of the relative refractory period?
The Refractory period is when a second action potential is possible, but unlikely; second action potential only if the stimulus is sufficiently strong. The refractory period helps to prevent backflow of Sodium.
Define the period of repolarization when only a strong stimulus will elicit an action potential?
The period of relative refractory period is the time after an action potential during which a strong stimulus is required to generate a new action potential. This is because the membrane potential is hyperpolarized, making it more difficult to reach the threshold for firing another action potential.
What is an exceptionally strong stimulus that can trigger a response?
Relative refractory period
What does the relative refractory period of the T wave represent?
The relative refractory period of the T wave represents a vulnerable period in the cardiac cycle during which a premature beat can trigger an arrhythmia, such as Torsades de Pointes. This period occurs during the repolarization phase, when the myocardium is in a state of partial recovery but not fully refractory.
Absolute refractory period relative refractory period?
In absolute refractory period, none of channels are reconfigured, so that second active potential cannot be generated no matter how large the stimulus current is applied to the neuron. In contrast, in relative refractory period, some but not all of channels are reconfigured, another action potential can be generated but only by a greater stimulus current thatn that originally needed.
What two events render a sement of an axon temporarily insensitive to another stimulus?
The two events that render a segment of an axon temporarily insensitive to another stimulus are the absolute refractory period and the relative refractory period. During the absolute refractory period, the axon cannot respond to any stimulus regardless of strength, while during the relative refractory period, the axon can only respond to a stronger-than-normal stimulus.
