Part B

1. What was the threshold voltage for the frog sciatic nerve?_

2. What was the voltage needed for maximal contraction of the gastrocnemius muscle?

3. Complete the following table: Factor Tested Muscle Response Effect on Nerve


Glass rod (room temperature)

Glass rod (cooled)

Glass rod (heated)

1% NaCl

4. Write a statement to summarize the results of these tests.

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Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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