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Under normal circumstances action potential will proceed unilaterally. An action potential cannot proceed down an axon and depolarize in the reverse direction on the same axon. It must carry information on one axon in one direction and then on another axon in a separate direction.
In a lab you can depolarize neurons in the middle of an axon and it will depolarize bilaterally.
What else can I help you with?
Where do most local potentials happen?
Local potentials typically occur in the dendrites and cell body of a neuron. They involve small changes in membrane potential that do not reach the threshold for generating an action potential. These local changes in potential allow for signal integration and processing in the neuron.
How did the threshold for second action potential change as you further decrease the interval between the stimuli?
One might find how the threshold will change by inquiring the mind of a scientist at ones local college. Another way to find the answer to this question would be to research it in books at ones local library.
What is the difference between a compound action potential and a single action potential?
Single action potentials follow the "all or none" rule. That is, if a stimulus is strong enough to depolarize the membrane of the neuron to threshold (~55mV), then an action potential will be fired. Each stimulus that reaches threshold will produce an action potential that is equal in magnitude to every other action potential for the neuron. Compound action potentials do not exhibit this property since they are a bundle of neurons and have different magnitudes of AP's. Thus compound action potentials are graded. That is, the greater the stimulus, the greater the action potential.
An electrical impulse moving down an axon is called?
This is called action potential. Action potential is the change in electrical potential that occurs between the inside and outside of a nerve or muscle fiber when it is stimulated, serving to transmit nerve signals.
What is another name for an action potential in neuroscience?
In neuroscience, another name for an action potential is a nerve impulse.
What is the difference between local potential and action potential?
Local Potentials: Ligand regulated, may be depolarizing or hyperpolarizing, reversible, local, decremental Action Potentials: Voltage regulated, begins with depolarization, irreversible, self-propagating, nondecremental.
A series of similar stimuli that increases change in local membrane potential is called?
Action potential
What are the events that must occur to generate action potential?
Local polarization is the first step. Next the generation and propagation of an action potential. Lastly repolarization has to take place.
Dendrites conduct both graded and action potential?
Dendrites primarily conduct graded potentials, which are local changes in membrane potential. These graded potentials can accumulate and trigger an action potential in the axon hillock if they reach a certain threshold. Action potentials are then conducted along the axon.
Where do most local potentials happen?
Local potentials typically occur in the dendrites and cell body of a neuron. They involve small changes in membrane potential that do not reach the threshold for generating an action potential. These local changes in potential allow for signal integration and processing in the neuron.
What is meant by reversible and irreversible action?
Reversible action refers to a process that can be undone or reversed, returning to the original state without any permanent changes. Irreversible action, on the other hand, signifies a process that cannot be undone, resulting in permanent changes or consequences.
How are local and action potentials similar?
Local and action potentials both involve changes in membrane potential due to the movement of ions across the cell membrane. They both follow the same basic principles of depolarization and repolarization. However, action potentials occur in excitable cells like neurons and muscle cells, while local potentials are smaller, graded changes in membrane potential that occur in non-excitable cells.
What was the effect of curare on eliciting an action potential?
It creates an action potential
Will a hyperpolarization graded potential lead to an action potential?
No, hyperpolarization graded potentials do not lead to action potentials. Hyperpolarization makes the membrane potential more negative, which inhibits the generation of an action potential by increasing the distance from the threshold potential needed to trigger an action potential.
How did the threshold for second action potential change as you further decrease the interval between the stimuli?
One might find how the threshold will change by inquiring the mind of a scientist at ones local college. Another way to find the answer to this question would be to research it in books at ones local library.
What is local graded potential?
Local graded potentials are small changes in membrane potential that occur in response to neurotransmitter binding to ligand-gated ion channels on the post-synaptic neuron. These potentials can summate and affect the likelihood that an action potential will be generated in the neuron. They are also referred to as synaptic potentials.
What is the regeneration of action potential called?
The regeneration of action potential is called "propagation." It involves the transmission of the action potential along the length of the neuron's axon.
