0
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).
What else can I help you with?
What is the final velocity of an object that decreases in kinetic energy and increases in potential energy?
The final velocity of the object would be less than its initial velocity, as some of the kinetic energy has been converted to potential energy. The exact final velocity would depend on the specific amounts of energy involved and the characteristics of the system.
What do resting and action potentials depend on?
The resting and action potentials depend on the balance of charges of the area outside the neuron and inside the neuron. A resting potential is when the neuron is more negatively (approximately -70mv) charged than the area outside the neuron. The action potential occurs when sodium ions rush into the neuron, causing the polarity to be reversed. When there is no difference in charge between the area inside the neuron and the area outside the neuron, no action potentials can be started by that neuron.
Does e by m value of electrons depend on velocity of electrons?
No
What height will it gain after the escape velocity becomes half?
That will depend not only on the escape velocity, but also - very importantly - on the object's speed.
Does the escape velocity on a planet depend upon its density or mass?
No, its depends on the planets gravitational pull
What is the final velocity of an object that decreases in kinetic energy and increases in potential energy?
The final velocity of the object would be less than its initial velocity, as some of the kinetic energy has been converted to potential energy. The exact final velocity would depend on the specific amounts of energy involved and the characteristics of the system.
What does mechanical energy depend on?
Mechanical energy depends on an object's mass and velocity. It is the sum of an object's potential and kinetic energy.
What is the velocity of an average shower head?
The velocity does not depend on ther shower head, however it does depend on the cold mains pressure, a higher pressure will result in a higher velocity, and visa versa.
Does the escape velocity of a rocket depend on its mass?
no
What do resting and action potentials depend on?
The resting and action potentials depend on the balance of charges of the area outside the neuron and inside the neuron. A resting potential is when the neuron is more negatively (approximately -70mv) charged than the area outside the neuron. The action potential occurs when sodium ions rush into the neuron, causing the polarity to be reversed. When there is no difference in charge between the area inside the neuron and the area outside the neuron, no action potentials can be started by that neuron.
What does freefall acceleration depend on?
Acceleration is change in velocity. So it depends on both velocity and time.
What are two types of energy that depend on the mass of an object?
Two types of energy that depend on the mass of an object are gravitational potential energy and kinetic energy. Gravitational potential energy is gained as an object is lifted against gravity, increasing with mass and height. Kinetic energy, on the other hand, depends on the mass of the object and its velocity.
The energy of an object in motion will depend on what?
Its velocity and its mass.
What does terminal velocity depend on?
Gravity and air resistence.
Does a moving object's distance depend on the object's mass and velocity?
The distance doesn't depend on the mass.
Why does velocity not depend on distance?
Velocity is the rate at which an object changes its position, regardless of the distance it has traveled. Velocity considers both speed and direction, so a change in direction can affect velocity even if distance remains constant. Distance is the total length of the path traveled, whereas velocity focuses on the rate of change in position.
Does e by m value of electrons depend on velocity of electrons?
No
