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Bio 170 Physio Ex Exercise 3 Activity 4 Lab Report $9.99
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Bio 170 Physio Ex Exercise 3 Activity 4 Lab Report
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Exercise 3: Neurophysiology of Nerve Impulses Activity 4: The Action Potential: Importance of Voltage-Gated Na+ Channels lab report for Bio 170. *Essential Study Material!!

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  • October 12, 2024
  • 4
  • 2020/2021
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11/30/2020 PhysioEx Exercise 3 Activity 4



PhysioEx Lab Report
Exercise 3: Neurophysiology of Nerve Impulses
Activity 4: The Action Potential: Importance of Voltage-Gated Na+ Channels
Name: Sarah Rodriguez
Date: 30 November 2020
Session ID: session-d460dbea-5248-59cb-d12b-d0683b16ffc2

Pre-lab Quiz Results
You scored 100% by answering 4 out of 4 questions correctly.

1 Voltage-gated Na+ channels are membrane channels that open

You correctly answered: when the membrane depolarizes.

2 When open, Na+ channels allow

You correctly answered: Na+ ions to diffuse into the cell.

3 Which of the following is true of an action potential?

You correctly answered: All of these answers are correct.

4 Which of the following can reduce the likelihood of an action potential?

You correctly answered: All of these can reduce the likelihood of an action potential.


Experiment Results
Predict Questions
1 Predict Question 1: If you apply TTX between recording electrodes R1 and R2, what effect will
the TTX have on the action potentials at R1 and R2?

Your answer: TTX will block the response at R2 but have no effect at R1.

2 Predict Question 2: If you apply lidocaine between recording electrodes R1 and R2, what
effect will the lidocaine have on the action potentials at R1 and R2?

Your answer: Lidocaine will block the response at R2 but have no effect at R1.

Stop & Think Questions
1 Enter the peak value of the response at R1 and R2.

You answered: 100 μV.
i
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