PEX-03-05 - You correctly answered: a. The threshold for...

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Exercise 3: Neurophysiology of Nerve Impulses: Activity 5: The Action Potential: Measuring Its Absolute and Relative Refractory Periods Lab Report Pre-lab Quiz Results You have not completed the Pre-lab Quiz. 12/07/11 page 1
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12/07/11 page 2 Experiment Results Predict Question: Predict Question: If you further decrease the interval between the stimuli, will the threshold for the second action potential change? Your answer : b. The threshold for the second action potential will not change. Threshold can be defined as the minimum voltage needed to generate an action potential. Is the threshold for the first action potential the same as, or different from, the threshold for the second action potential with a 60 msec interval?
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Unformatted text preview: You correctly answered: a. The threshold for the first action potential is lower than the threshold for the second action potential. Experiment Data: Interval Between Stimuli (msec) Stimulus Voltage (mV) Second Action Potential? 250 20 Yes 125 20 Yes 60 20 No 60 25 No 60 30 Yes 30 30 No 30 35 No 30 40 No 30 45 Yes 15 60 Yes 7.5 60 Yes 3.75 60 No 12/07/11 page 3 12/07/11 page 4 12/07/11 page 5 12/07/11 page 6 12/07/11 page 7 12/07/11 page 8 12/07/11 page 9 Post-lab Quiz Results You have not completed the Post-lab Quiz. 12/07/11 page 10 Review Sheet Results You have not completed the Review Sheet....
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PEX-03-05 - You correctly answered: a. The threshold for...

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