Question

12. The speed of propagation of the action potential (an electrical signal) in a nerve cell depends (inversely) on the diameter of the axon (nerve fiber). If the nerve cell connecting the spinal cord to your feet is $1.1 \mathrm{m}$ long, and the nerve impulse speed is $18 \mathrm{m} / \mathrm{s},$ how long does it take for the nerve signal to travel this distance?

Name: Problem 12, Chapter 2: College Physics
Uploaded: 2020-06-23T12:49:10-08:00
Duration: 38 s
Channel: Keshav Singh
Description: 12. The speed of propagation of the action potential (an electrical signal) in a nerve cell depends (inversely) on the diameter of the axon (nerve fiber). If the nerve cell connecting the spinal cord to your feet is 1.1 m long, and the nerve impulse speed is 18 m / s, how long does it take for the nerve signal to travel this distance?

   12. The speed of propagation of the action potential (an electrical signal) in a nerve cell depends (inversely) on the diameter of the axon (nerve fiber). If the nerve cell connecting the spinal cord to your feet is $1.1 \mathrm{m}$ long, and the nerve impulse speed is $18 \mathrm{m} / \mathrm{s},$ how long does it take for the nerve signal to travel this distance?

College Physics

Paul Peter Urone,… 1st Edition

Chapter 2, Problem 12

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Solved by Expert Keshav Singh

06/23/2020

Step 1

The formula is given by: \[ t = \frac{d}{s} \] where: - $ t $ is the time, - $ d $ is the distance, and - $ s $ is the speed. Show more…

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12. The speed of propagation of the action potential (an electrical signal) in a nerve cell depends (inversely) on the diameter of the axon (nerve fiber). If the nerve cell connecting the spinal cord to your feet is $1.1 \mathrm{m}$ long, and the nerve impulse speed is $18 \mathrm{m} / \mathrm{s},$ how long does it take for the nerve signal to travel this distance?

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Key Concepts

Speed-Distance-Time Relationship

This fundamental concept from kinematics states that time is equal to the distance traveled divided by the speed of travel. It is widely used to determine one of the variables when the other two are known and applies universally across various contexts, including physics and biology.

Action Potential

An action potential is an electrical signal generated by nerve cells (neurons) that propagates along the axon. It is crucial for transmitting information quickly within the nervous system and is a foundational concept in neurophysiology.

Nerve Impulse Propagation

Nerve impulse propagation refers to the process by which an action potential travels along a neuron’s axon. This process depends on various factors such as the axon’s diameter and myelination, and it is central to understanding how signals are transmitted throughout the nervous system.

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