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What does the velocity of action potential transmission depends least on what?
Wiki User
∙ 11y ago
For an action potential to transmit it's dependent on three major factors. 1. Size of action potential - greater size and rate of depolarization greater the action potential 2. Cell diameter- greater diameter, greater potential think of water pipes, wider pipes potentially carry more water 3. Myelination. For the idiot that said friction, in the world of neuroscience in which this question was posted under, friction is not the right answer. You are not physically moving something. It's all about conductance, read the right chapter in physics. Myelination reduces current leaks allowing the majority of conductance to reach the node. Thus myelination increases speed and strength of transmissions. Velocity is least dependent on anything other than these three. I hope that answers your question. However, it was kind of vague so, working bakeries from the question seemed the best way to go
Wiki User
∙ 11y ago
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What type of cell enhances the velocity of electrical transmission of an action potential along an axon in the peripheral nervous system?
Schwann Cells.
What transmission of the depolarization wave along the neurons membrane?
Action potential
What structure in the neuron helps to speed up the transmission of the action potential?
To speed up transmission of the action potential from where it originates (axon hillock) to where it ends (axon terminal), the action potential propagates by 'saltatory conduction' - and the structure that makes this possible is the insulating layer of myelin sheath that wraps around the axon, arranged in 'nodes' along its length. Technically, it's the gaps between the nodes (nodes of Ranvier) that cause the action to continually propagate and maintain its fast conduction velocity.
What effect did an ether have on action potential?
Ether blocked the impulse transmission.
Which type of axon will velocity of action potential conduction be the fastest?
Myelinated axons with the largest diameter
What type of cell enhances the velocity of electrical transmission of an action potential along an axon in the central nervous system?
Oligodendrocyte
What type of cell enhances the velocity of electrical transmission of an action potential along an axon in the peripheral nervous system?
Schwann Cells.
What transmission of the depolarization wave along the neurons membrane?
Action potential
The velocity of the action potential is fastest in which of the following axons?
a small myelinated axon
What structure in the neuron helps to speed up the transmission of the action potential?
To speed up transmission of the action potential from where it originates (axon hillock) to where it ends (axon terminal), the action potential propagates by 'saltatory conduction' - and the structure that makes this possible is the insulating layer of myelin sheath that wraps around the axon, arranged in 'nodes' along its length. Technically, it's the gaps between the nodes (nodes of Ranvier) that cause the action to continually propagate and maintain its fast conduction velocity.
What is another term that describes neural transmission?
Action potential
What effect did an ether have on action potential?
Ether blocked the impulse transmission.
Which type of axon will velocity of action potential conduction be the fastest?
Myelinated axons with the largest diameter
What does a conduction velocity of an action potential depend on?
An action potential does not have a conduction velocity. Rather, it makes sense to measure the conduction velocity of nerves or nerve cells and this is usually done in metres per second (m/s.). An action potential is characterised as "an all or none response". This means you cannot alter the characteristics of an action potential in a given nerve cell. If you get a nerve cell and manage to get it to threshold, produce and measure an action potential 1000 times or more at the exact same point on the cell, the action potential you measure will not change in timing or amplitude. Information travels down a nerve cell through action potentials. But it is not one action potential that travels the whole length of the axon. Instead what happens is that one action potential causes the next bit of the nerve cell to reach threshold and therefore creates an entirely new action potential. So you actually need multiple action potentials to happen along a nerve cell to send information down it. We call this "propagation of action potentials" since each action potential produces a new one. More properly, it is referred to as "saltatory action potential conduction". Conduction velocity is basically a measure of how quickly we can produce a series of action potentials to travel the distance of the nerve cell axon. Since action potentials only happen at each "Node of Ranvier", then the longer the distance between each node (internodal distance), the faster the conduction velocity of a nerve cell. Since the internodal distance is positively correlated with myelin thickness, more thickly myelinated nerve cells have faster conduction velocities. The thickest and fastest nerve cells are motor neurones and Ia fibres from muscle spindles with a diameter of 12-20 micrometres and a conduction velocity of 70-120 m/s. The thinnest/slowest are fibres used to convey slow pain (<1.5 micrometres and 0.5-2 m/s).
Explain what the ap is an all or none?
it depends on the stimulation. if the stimulation is not strong enough, there might be no action potential. However, if the stimulation is strong enough, there will be an action potential
What are the potential remedies in a civil action?
It depends on what you or your attorney are asking for, and the finding of the court or jury.
What would be the effect on action potential conduction at a region of axon where the disease had its effect?
Depends on disease
