0
Add your answer:
Earn +20 pts
What happens to a neuron when a stimulus reaches the threshold level?
When a neuron reaches its threshold level, it generates an action potential. This triggers the neuron to send an electrical signal down its axon, which can then stimulate communication with other neurons or target cells.
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).
The minimum stimulus needed to cause a contraction is called the?
The minimum stimulus needed to cause a contraction is called the threshold stimulus. This is the minimal level of stimulation required to activate muscle fibers and initiate a contraction response.
What does sensation level mean?
Sensation level refers to the level of sound intensity relative to an individual's threshold of hearing at a specific frequency. It is often used in audiometry to describe the loudness of a sound in decibels above the individual's hearing threshold at that frequency.
What are absolute threshold in vision?
The absolute threshold in vision refers to the minimum amount of light needed for a person to detect a visual stimulus. This threshold is specific to each individual and can vary based on factors such as age and fatigue. It is the lowest level of light at which someone can see an object.
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.
What does threshold means in respect to neurons response?
In the context of neurons, the threshold refers to the level of stimulation needed to generate an action potential or nerve impulse. Once the input signal surpasses this threshold, the neuron will fire and transmit an electrical signal down its axon. Below the threshold, the neuron remains inactive.
What happens to a neuron when a stimulus reaches the threshold level?
When a neuron reaches its threshold level, it generates an action potential. This triggers the neuron to send an electrical signal down its axon, which can then stimulate communication with other neurons or target cells.
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.
Minimum level of stimulation required to trigger a neural impulse?
The minimum level of stimulation required to trigger a neural impulse is known as the "threshold." This threshold is the minimum amount of neurotransmitter release or electrical stimulation needed to generate an action potential in a neuron. Below this threshold, the neuron will not fire an action potential.
What stimulus below this intensity will result in no response in a neuron?
Any stimulus below the neuron's threshold potential will not result in a response, as it is not strong enough to generate an action potential. Neurons require a minimum level of stimulus intensity to reach the threshold potential and fire an action potential.
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 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.
