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Home Q & A Board Biology-Related Homework Help Anatomy and Physiology
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johncuit34 johncuit34
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9 years ago
Which of the following occurs first in the generation of an action potential?

   The membrane repolarizes.
   Voltage-gated potassium channels open.
   Voltage-gated sodium channels open.
   The membrane depolarizes.


Part B
Which of the following occurs during depolarization?

   Sodium flows into the cell.
   Voltage-gated potassium channels close.
   Both A and C occur.
   Voltage-gated sodium channels close.
   All of the above occur.
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9 years ago
Part A:  The membrane depolarizes. (which then causes the sodium gates to open)

Part B:  Sodium flows into the cell.
Success is not final, failure is not fatal: it is the courage to continue that counts. – Winston Churchill
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