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its depolarized.
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What is the trigger point at which a neuron will fire called?
Its where there are a lot of sodium channels. Once the trigger zone is 'triggered' to threshold (from -70mV to -55mv), then an action potential occurs. trigger zone in MOTOR neurons are in the axon hillock and in SENSORY neurons, they're in the 1st unmyelinated area (first node of ranvier).
What happens to a neuron when a stimulus reaches the threshold level?
It simply and completely self destructs. You see, once the threshold is reached it no longer can sustance its physical structure due to power surges. This results in an power overload just like when a star such as the sun reaches critical level and eventually explodes resulting in a Supernova.
What does sensation level mean?
The sensation level is measured in decibels. It is frequency specific and starts at 0 dB SL (sensation level) where 0 dB SL is the softest the patient can here a specific frequency. This means that the SL will be different for different people. Everyone's SL will start at 0 but my SL at 1000 Hz may be at 23 db IL and another's may be at 54 db IL.Put more simply, dB SL is the difference between a person's threshold of hearing and the presentation level of a stimulus. If a person's speech reception threshold (SRT) is 10 dB on an audiometer (dB HL) and you present a speech stimulus to them at 50 dB HL on the audiometer, their sensation level would be derived thus: 50 dB (presentation level) minus 10 dB (threshold), which equals a sensation level of 40 dB SL. This is also the procedure for a frequency-specific stimulus (e.g. pure tones): subtract the audiometric threshold (dB HL) from the supra-threshold presentation level (dB HL) and the difference is the sensation level (dB SL).
What are absolute threshold in vision?
The absolute threshold of vision is being able to see a candle flame from 30 miles on a clear dark night. This the absolute threshold under normal conditions and they vary according to the level and nature of ongoing sensory stimulation and varies from person to person and moment to moment.
If a tone or signal were presented at 40dBSL to a listener with a threshold of 40dBHL what is the sound level of the signal?
diffrense betwen dbsl and dbhl and db
When several neurons are stimulated equally which one will fire first?
The neuron with the lowest threshold potential will fire first when several neurons are stimulated equally. Threshold potential is the minimum level of depolarization needed to trigger an action potential in a neuron. Neurons with lower threshold potentials are more excitable and will fire before neurons with higher threshold potentials.
Minimum level of stimulation required to trigger a neural impulse?
An action potential needs to occur to trigger the neurons but the action potential depends on whether a stimulus is able to bring the membrane potential to a certain level termed the THRESHOLD. This threshold is about -55 mV for most neurons, but the stimulus needs to bring the membrane potential to this certain level or it will not be triggered. Relating to the ALL-OR-NONE PRINCIPLE, which if the threshold is not acquired then an action potential will not occur but once a stimulus is strong enough to depolarize (making the inside of the cell less negative going from -70 mV to -55 mV) it will trigger. The resting potential is -70 mV which the stimulus needs to bring it up to -55mV.
What does it mean when I'm over the threshold when making a payroll tax payment?
A threshold for a tax payment is a level above which some provision of the tax is applicable. So when you are "over the threshold" you have reached a level where some addtional aspect of payroll tax applies to you.
What happens when someone's brain has a low level of neurotransmitter?
Neurons aren't able to communicate with each other.
What happens when someone brain has a low level of neurotransmitters?
Neurons aren't able to communicate with each other.
What happens when someone brain has a low level of neurotransmitter?
Neurons aren't able to communicate with each other.
What happens when someones brain has a low level of neurotransmitter?
Neurons aren't able to communicate with each other.
What happens when someone's brain has a low level of neurotransmitters?
Neurons aren't able to communicate with each other.
What happens when someones brain has a low level of neurotransmitters?
Neurons aren't able to communicate with each other.
Is threshold an abstract noun?
The noun 'threshold' is an abstract noun as a word for a point of beginning; a level at which something happens or changes; a word for a concept.The noun 'threshold' is a concrete noun as a word for the section of wood or stone that lies under a door.
What does all or non response mean to human anatomy?
All-or-none response means that things have to reach a certain threshold, a certain level before they happen. If it reaches that threshold, it becomes a cascading response that increases in size. If it fails to reach the threshold, well, nothing happens.
What is the trigger point at which a neuron will fire called?
Its where there are a lot of sodium channels. Once the trigger zone is 'triggered' to threshold (from -70mV to -55mv), then an action potential occurs. trigger zone in MOTOR neurons are in the axon hillock and in SENSORY neurons, they're in the 1st unmyelinated area (first node of ranvier).
