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Period of reploarization of the neuron during which it cannot respond to a second stimulus?
Wiki User
∙ 13y ago
The absolute refractory period. This period occurs after the action potential has been initiated and is a result of inactivation of the sodium channels. These sodium channels would normally open up to allow sodium influx into the cell during an action potential. The absolute refractory period occurs during an ongoing action potential and is the period in which a subsequent action potential absolutely cannot be generated.
This should not be confused with the relative refractory period which occurs immediately following the absolute refractory period (during membrane hyperpolarization). During this period a subsequent action potential is possible, but more difficult to attain.
Wiki User
∙ 13y ago
The absolute refractory period is the period of repolarization of a neuron during which it cannot respond to a second stimulus. This is due to the inactivation of voltage-gated sodium channels, which prevents the neuron from generating another action potential even if a strong stimulus is applied.
Wiki User
∙ 13y agoRefractory period.
Wiki User
∙ 13y agoAbsolute refractory period
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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.
Period when a neuron cannot be restimulated because its sodium gates are open and an AP is being generated?
The period when a neuron cannot be restimulated because its sodium gates are open and an action potential is being generated is called the absolute refractory period. During this time, the neuron is unable to respond to any additional stimuli, regardless of strength or duration, because the sodium channels are inactivated.
What is occurring when a muscle cell cannot be stimulated during the absolute refractory period?
During the absolute refractory period, a muscle cell cannot be stimulated because it is in a state where it is unable to respond to any stimuli, no matter how strong. This period is caused by the inactivation of voltage-gated sodium channels and the inability to generate another action potential until these channels have returned to their resting state.
What controls sensation of heat?
The sensation of heat is controlled by specialized nerve endings in the skin called thermoreceptors. These receptors detect changes in temperature and send signals to the brain, which then interprets the information and produces the sensation of heat.
Why can't an action potential be generated during the absolute refractory period?
During the absolute refractory period, voltage-gated sodium channels are inactivated and unable to open in response to depolarization. This prevents the generation of a new action potential because sodium influx is necessary for depolarization and initiation of an action potential.
The neuron cannot respond to a second stimulus no matter how strong?
Absolute refractory period
What is the difference between the effective refractory period and the relative refractory period?
The effective refractory period is the timeframe during which a cardiac cell is completely refractory and cannot respond to any stimulus. The relative refractory period is the period during which a cardiac cell is in a partially recovered state and can only respond to a strong stimulus.
What is correct in response or in respond?
A person can respond but a person cannot "in respond". It requires "in response to".I wanted to respond to my friend's email.In response to my friend's email, I sent him a humorous E-card.
What is the absolute refractory period?
Absolute Refractory Period:It is the interval during which a second action potential absolutely cannot be initiated, no matter how large a stimulus is applied.ORAfter repolarization there is a period during which a second action potential cannot be initiated, no matter how large a stimulus current is applied to the neuron. This is called the absolute refractory period, and it is followed by a relative refractory period, during which another action potential can be generated
Absolute refractory period relative refractory period?
The absolute refractory period is the time during which a neuron cannot generate another action potential, regardless of the strength of the stimulus. The relative refractory period is the time during which a neuron can generate another action potential, but only if the stimulus is stronger than usual.
What time during which an excitable membrane cannot respond to further stimulation?
The absolute refractory period is the time during which an excitable membrane cannot respond to further stimulation because voltage-gated sodium channels are inactivated. This period ensures that action potentials do not overlap and allows for proper signaling in nerve and muscle cells.
What cannot be used for signaling the intensity of a stimulus?
Color perception cannot be used for signaling the intensity of a stimulus, as it is primarily used for distinguishing different wavelengths of light. Other sensory modalities such as touch, taste, and smell are better suited for detecting and signaling the intensity of a stimulus.
Is it respond to or respond for?
It can be either one, depending on your meaning. You would "respond to" a question or comment directed at you. You would "respond for" someone else who cannot respond for themselves.
A stimulus that cannot be detected at least 50 of the time is said to be?
Subliminal.
Unicellular organisms cannot respond to their environment?
Unicellular organisms can respond to their environment through processes like chemotaxis, phototaxis, and thermotaxis. They can detect changes in their surroundings and adjust their behavior accordingly to ensure survival and reproductive success. This responsiveness allows them to navigate towards favorable conditions and away from harmful ones.
Period when a neuron cannot be restimulated because its sodium gates are open and an AP is being generated?
The period when a neuron cannot be restimulated because its sodium gates are open and an action potential is being generated is called the absolute refractory period. During this time, the neuron is unable to respond to any additional stimuli, regardless of strength or duration, because the sodium channels are inactivated.
What cannot talk but will respond when spoken to?
an echo
