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Measuring Action Potential Velocity in Motor Nerves Quiz

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Measuring Action Potential Velocity in Motor Nerves Quiz

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Questions and Answers

Which method is used to measure the velocity of action potential in motor nerves?

The distance between points 1 and 2 is measured.

Stimuli are applied at two locations and the time from stimulus to recording the nerve signal is measured. (correct)

The time required for the nerve signal to travel a specific distance is measured.

The latency period for the response to stimulus 1 is compared to the response to stimulus 2.

Which equation is used to calculate the velocity of the action potential?

v = t/x

v = x/t (correct)

v = x - t

v = x + t

What is the distance between points 1 and 2 in the measurement of the velocity of action potential?

0.004 s

0.25 m (correct)

4 ms

62.5 m/s

What is the time required for the nerve signal to travel the distance between points 1 and 2?

0.004 s Signup and view all the answers

What is the nerve conduction velocity in the given scenario?

62.5 m/s Signup and view all the answers

Which type of nerves are used for the measurement of conduction velocity?

Sensory nerves Signup and view all the answers

What is the typical range of conduction velocities for sensory nerves?

40 to 60 m/s Signup and view all the answers

What is the formula used to calculate the conduction velocity of the action potential?

m/s (s)t (m)x = v Signup and view all the answers

What is the conduction velocity from electrode 1 to electrode 2 in the given scenario?

58 m/s Signup and view all the answers

What would a conduction velocity below 10 m/s indicate?

Nerve damage Signup and view all the answers