PhysioEx Exercise 3 Review Sheet

bubear

wrote...

13 years ago

Can anyone help with the Review sheet on pg 41 and 42 for exercise 3 ? I have did the labs but I am new to this PhysioEx and I'm not sure about the answers! Thank You!!

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bio_man

wrote...

Educator

13 years ago

What question in particular Neutral Face

Can't give you the solutions manual, but can help you with specific questions, for sure! Slight Smile

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bubear Author

wrote...

13 years ago

Hi Thanks for responding! Help with #7 on review Why does the addition of sodium chloride elicit an action potential?

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bio_man

wrote...

Educator

13 years ago

Quote from: bubear (13 years ago)

Hi Thanks for responding! Help with #7 on review Why does the addition of sodium chloride elicit an action potential?

While the sodium-potassium pump is pumping sodium out of the cell and potassium into the cell, these ions are leaking back where they came from by diffusion. By adding sodium chloride, a more-than-normal amount of sodium will diffuse into the nerve, causing the resting membrane potential to reach the threshold value, bringing about a membrane depolarization.

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naj1362 Author

wrote...

12 years ago

Hello, I am new to this physioex and I dont know how it works. can somebody help me with physioex, exercise3. #4. how did the ap generated with unheated rod compare to that generated with heated?
#5. describe the types of stimuli that generated actionpotential. #6. if you were to spend a lot of time studying nerve physiology in lab, what type of stimulus would you use and why?

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