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Rank these axons in order of fastest to slowest?

darksith77

wrote...

11 years ago

Rank these axons in order of fastest to slowest?

Axon X has a diameter of 1.0 micrometers, is 10 cm long, and is unmyelinated. Axon Y has a diamether of 10 micrometers, is 25 cm long, and is myelinated. Axon Z is 2.5 micrometers in diameter, is 2.5 cm long, and is myelinated.

How do I rank these axons in order of fastest to slowest conduction rate?

Please explain your reasoning for this order.

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leelu

wrote...

#1

11 years ago

I think you should complete the assignment by yourself so that you learn something, but I'll give you a hint.

Nerve impulses travel faster along an axon that is myelinated. Due to the Nodes of Ranvier, the impulses 'jump' instead of travelling straight and continuously. The shorter the distance, the quicker the impulse can travel from one spot to another.

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