There are two properties that affect the conduction speed of an action potential along an axon

There are two properties that affect the conduction speed of an action potential along an axon: the axon's diameter and whether or not the axon is myelinated. Rank the axons from slowest to fastest conduction speed. If two axons have the same conduction speed, place one on top of the other.

Expert Solution

Fastest - myelinated vertebrate axon 30μm

Next - non-myelinated invertebrate axon - 40μm

Next - non-myelinated invertebrate axon - 30μm

Slowest - non-myelinated invertebrate axon -20μm.

The size of the axon and myelin insulation increase the speed of conduction of action potential.

Dr. OWL answered 3 years ago

Describe how an action potential propagates along a myelinated and an unmyelinated axon, including how the...

Describe how an action potential propagates along a myelinated and an unmyelinated axon, including how the potential is spread along the membrane. How are these two processes similar and how are they different? What two benefits do myelinated axons have over unmyelinated ones? Provide one way in which a myelinated axon is similar to an electrical wire and one way in which an axon is different than a wire. Why does multiple sclerosis (MS) prevent transmission in myelinated axons (that...

22. Choose the correct sequence of action potential conduction along the conductive tissues of the heart:...

22. Choose the correct sequence of action potential conduction along the conductive tissues of the heart: a. SA node → AV node → Bundle of His → Purkinje fibers → Bundle branches b. SA node → AV node → Bundle of His → Bundle branches → Purkinje fibers c. SA node → AV node → Bundle branches → Bundle of His → Purkinje fibers d. SA node → AV node → Purkinje fibers → Bundle of His → Bundle branches...

Explain the need for saltatory conduction and how myelination and axon diameter affect rate of conduction...

Explain the need for saltatory conduction and how myelination and axon diameter affect rate of conduction – you can do this as an illustration. Make sure in your answer you include: axon, axon hillock, axon terminal, original action potential, new action potential, Schwann cell, myelin, node of Ranvier, depolarization, refractory DO NOT DEFINE THESE TERMS INDIVIDUALLY please type the answer.

When one action potential is traveling along an unmyelinated axon from cell body side and another...

When one action potential is traveling along an unmyelinated axon from cell body side and another action potential is traveling along the axon from synaptic terminal side, these two action potentials are going to collide with each other at the center of the axon. What is going to happen to these action potentials after the collision?

The speed of signal propagation along an axon strongly depends on its two characteristics or parameters....

The speed of signal propagation along an axon strongly depends on its two characteristics or parameters. What are they?

A impulse conduction, explain how a nerve impulse was initiated and transmitted along the axon. Illustrate...

A impulse conduction, explain how a nerve impulse was initiated and transmitted along the axon. Illustrate answer with an action potential diagram to explain the membrane potential changes due to movement of ions in the gated channels.

Describe the importance of voltage-gated channels in the conduction of an action potential.

List the sequence of action potential generation of the heart's intrinsic conduction system:

1. Which of the following DOES NOT influence the conduction velocity of an action potential A)...

1. Which of the following DOES NOT influence the conduction velocity of an action potential A) Diameter of the axon B) Permeability of the axon C) Density of Ca channels D) Myelination (answer not D or A) 2. The relationship of an action potential (AP) to the stimulus that generates it is best described as: A) Stimulus intensity is correlated with the frequency of the AP B) Stimulus intensity is proportional to the amplitude of the AP C) Stimulus intensity...

Describe how an action potential is propagated through an axon, and how neurotransmitters are released in...

Describe how an action potential is propagated through an axon, and how neurotransmitters are released in response to the action potential reaching the synaptic terminal

Question